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P. Martin
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P. Martin
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Astrophysics of Galaxies (16)
 
Cosmology and Nongalactic Astrophysics (10)
 
High Energy Astrophysical Phenomena (6)
 
Mathematics - Optimization and Control (4)
 
Solar and Stellar Astrophysics (4)
 
Instrumentation and Methods for Astrophysics (4)
 
Mathematics - Representation Theory (3)
 
Mathematics - Dynamical Systems (3)
 
Physics - Strongly Correlated Electrons (2)
 
Mathematical Physics (2)
 
Mathematics - Mathematical Physics (2)
 
Physics - Instrumentation and Detectors (1)
 
Computer Science - Cryptography and Security (1)
 
Physics - Atomic Physics (1)
 
High Energy Physics - Experiment (1)
 
Mathematics - Group Theory (1)
 
High Energy Physics - Phenomenology (1)
 
High Energy Physics - Lattice (1)
 
Computer Science - Computers and Society (1)
 
Earth and Planetary Astrophysics (1)
 
Mathematics - Quantum Algebra (1)
 
High Energy Physics - Theory (1)
 
Mathematics - Rings and Algebras (1)
 
Mathematics - Category Theory (1)

Publications Authored By P. Martin

This paper proposes a method based on signal injection to obtain the saturated current-flux relations of a PMSM from locked-rotor experiments. With respect to the classical method based on time integration, it has the main advantage of being completely independent of the stator resistance; moreover, it is less sensitive to voltage biases due to the power inverter, as the injected signal may be fairly large. Read More

We derive in a direct way the exact controllability of the 1D free Schr\"odinger equation with Dirichlet boundary control. We use the so-called flatness approach, which consists in parametrizing the solution and the control by the derivatives of a "flat output". This provides an explicit and very regular control achieving the exact controllability in the energy space. Read More

We present an overview of the first data release (DR1) and first-look science from the Green Bank Ammonia Survey (GAS). GAS is a Large Program at the Green Bank Telescope to map all Gould Belt star-forming regions with $A_V \gtrsim 7$ mag visible from the northern hemisphere in emission from NH$_3$ and other key molecular tracers. This first release includes the data for four regions in Gould Belt clouds: B18 in Taurus, NGC 1333 in Perseus, L1688 in Ophiuchus, and Orion A North in Orion. Read More

We present the first data release of the James Clerk Maxwell Telescope (JCMT) Plane Survey (JPS), the JPS Public Release 1 (JPSPR1). JPS is an 850-um continuum survey of six fields in the northern inner Galactic Plane in a longitude range of l=7-63, made with the Sub-millimetre Common-User Bolometer Array 2 (SCUBA-2). This first data release consists of emission maps of the six JPS regions with an average pixel-to-pixel noise of 7. Read More

To constrain models of high-mass star formation, the Herschel/HOBYS KP aims at discovering massive dense cores (MDCs) able to host the high-mass analogs of low-mass prestellar cores, which have been searched for over the past decade. We here focus on NGC6334, one of the best-studied HOBYS molecular cloud complexes. We used Herschel PACS and SPIRE 70-500mu images of the NGC6334 complex complemented with (sub)millimeter and mid-infrared data. Read More

Grading in embedded systems courses typically requires a face-to-face appointment between the student and the instructor because of experimental setups that are only available in laboratory facilities. Such a manual grading process is an impediment to both students and instructors. Students have to wait for several days to get feedback, and instructors may spend valuable time evaluating trivial aspects of the assignment. Read More

Filaments are key for star formation models. As part of the study carried out by the Herschel GCC Programme, here we study the filament properties presented in GCC.VII in context with theoretical models of filament formation and evolution. Read More

We study the Gevrey character of a natural parameterization of one dimensional invariant manifolds associated to a parabolic direction of fixed points of analytic maps, that is, a direction associated with an eigenvalue equal to $1$. We show that, under general hypotheses, these invariant manifolds are Gevrey with type related to some explicit constants. We provide examples of the optimality of our results as well as some applications to celestial mechanics, namely, the Sitnikov problem and the restricted planar three body problem. Read More

We statistically evaluate the relative orientation between gas column density structures, inferred from Herschel submillimetre observations, and the magnetic field projected on the plane of sky, inferred from polarized thermal emission of Galactic dust observed by BLASTPol at 250, 350, and 500 micron, towards the Vela C molecular complex. First, we find very good agreement between the polarization orientations in the three wavelength-bands, suggesting that, at the considered common angular resolution of 3.0 arcminutes that corresponds to a physical scale of approximately 0. Read More

We show that a proposed construction for higher lattice gauge theory is well-defined, including in particular a Hamiltonian for topological phases in 3+1 dimensions. Our construction builds upon the Kitaev quantum double model replacing the finite gauge connection with a finite 2-group connection. Our Hamiltonian higher lattice gauge theory is defined on spatial manifolds of arbitrary dimension presented by (regular) CW-decompositions. Read More

The majority of hot subdwarf stars are low-mass core-helium-burning stars. Their atmospheres are generally helium deficient; however a minority have extremely helium-rich surfaces. An additional fraction have an intermediate surface-helium abundance, occasionally accompanied by peculiar abundances of other elements. Read More

2016Dec
Authors: Planck Collaboration, Y. Akrami, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, K. Benabed, J. -P. Bernard, M. Bersanelli, P. Bielewicz, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, F. Boulanger, M. Bucher, C. Burigana, R. C. Butler, E. Calabrese, J. -F. Cardoso, J. Carron, H. C. Chiang, L. P. L. Colombo, B. Comis, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, E. Di Valentino, C. Dickinson, J. M. Diego, O. Doré, A. Ducout, X. Dupac, F. Elsner, T. A. Enßlin, H. K. Eriksen, E. Falgarone, Y. Fantaye, F. Finelli, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frolov, S. Galeotta, S. Galli, K. Ganga, R. T. Génova-Santos, M. Gerbino, J. González-Nuevo, K. M. Górski, A. Gruppuso, J. E. Gudmundsson, F. K. Hansen, G. Helou, S. Henrot-Versillé, D. Herranz, E. Hivon, A. H. Jaffe, W. C. Jones, E. Keihänen, R. Keskitalo, K. Kiiveri, J. Kim, T. S. Kisner, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, G. Lagache, J. -M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, M. Le Jeune, E. Lellouch, F. Levrier, M. Liguori, P. B. Lilje, V. Lindholm, M. López-Caniego, Y. -Z. Ma, J. F. Macías-Pérez, G. Maggio, D. Maino, N. Mandolesi, M. Maris, P. G. Martin, E. Martínez-González, S. Matarrese, N. Mauri, J. D. McEwen, A. Melchiorri, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, D. Molinari, A. Moneti, L. Montier, R. Moreno, G. Morgante, P. Natoli, C. A. Oxborrow, D. Paoletti, B. Partridge, G. Patanchon, L. Patrizii, O. Perdereau, F. Piacentini, S. Plaszczynski, G. Polenta, J. P. Rachen, B. Racine, M. Reinecke, M. Remazeilles, A. Renzi, G. Rocha, E. Romelli, C. Rosset, G. Roudier, J. A. Rubiño-Martín, B. Ruiz-Granados, L. Salvati, M. Sandri, M. Savelainen, D. Scott, G. Sirri, L. D. Spencer, A. -S. Suur-Uski, J. A. Tauber, D. Tavagnacco, M. Tenti, L. Toffolatti, M. Tomasi, M. Tristram, T. Trombetti, J. Valiviita, F. Van Tent, P. Vielva, F. Villa, I. K. Wehus, A. Zacchei

Measurements of flux density are described for five planets, Mars, Jupiter, Saturn, Uranus, and Neptune, across the six Planck High Frequency Instrument frequency bands (100-857 GHz) and these are then compared with models and existing data. In our analysis, we have also included estimates of the brightness of Jupiter and Saturn at the three frequencies of the Planck Low Frequency Instrument (30, 44, and 70 GHz). The results provide constraints on the intrinsic brightness and the brightness time-variability of these planets. Read More

We find the blocks for the symplectic blob algebra for all specialisations of the parameters over the complex numbers. We determine Gram determinants for the cell modules. We also show that the algebra is semisimple over the complex numbers unless at least one of the quantisation parameters, or the sum or difference of two of the parameters is integral or $q$ is a root of unity. Read More

The Planck survey has quantified polarized Galactic foregrounds and established that they are a main limiting factor in the quest for the cosmic microwave background (CMB) B-mode signal induced by primordial gravitational waves during cosmic inflation. Accurate separation of the Galactic foregrounds therefore binds this quest to our understanding of the magnetized interstellar medium (ISM). The two most relevant empirical results from analysis of Planck data are line of sight depolarization arising from fluctuations of the Galactic magnetic field orientation and alignment of filamentary dust structures with the magnetic field at high Galactic latitude. Read More

The characterization of the dust polarization foreground to the Cosmic Microwave Background (CMB) is a necessary step towards the detection of the B-mode signal associated with primordial gravitational waves. We present a method to simulate maps of polarized dust emission on the sphere, similarly to what is done for the CMB anisotropies. This method builds on the understanding of Galactic polarization stemming from the analysis of Planck data. Read More

UVO0825+15 is a hot bright helium-rich subdwarf which lies in {\it K2} Field 5 and in a sample of intermediate helium-rich subdwarfs observed with {\it Subaru/HDS}. The {\it K2} light curve shows low-amplitude variations, whilst the {\it Subaru} spectrum shows Pb{\sc iv} absorption lines, indicative of a very high lead overabundance. UVO0825+15 also has a high proper motion with kinematics typical for a thick disk star. Read More

2016Oct
Authors: The CTA Consortium, :, A. Abchiche, U. Abeysekara, Ó. Abril, F. Acero, B. S. Acharya, C. Adams, G. Agnetta, F. Aharonian, A. Akhperjanian, A. Albert, M. Alcubierre, J. Alfaro, R. Alfaro, A. J. Allafort, R. Aloisio, J. -P. Amans, E. Amato, L. Ambrogi, G. Ambrosi, M. Ambrosio, J. Anderson, M. Anduze, E. O. Angüner, E. Antolini, L. A. Antonelli, M. Antonucci, V. Antonuccio, P. Antoranz, C. Aramo, A. Aravantinos, M. Araya, C. Arcaro, B. Arezki, A. Argan, T. Armstrong, F. Arqueros, L. Arrabito, M. Arrieta, K. Asano, M. Ashley, P. Aubert, C. B. Singh, A. Babic, M. Backes, A. Bais, S. Bajtlik, C. Balazs, M. Balbo, D. Balis, C. Balkowski, O. Ballester, J. Ballet, A. Balzer, A. Bamba, R. Bandiera, A. Barber, C. Barbier, M. Barcelo, M. Barkov, A. Barnacka, U. Barres de Almeida, J. A. Barrio, S. Basso, D. Bastieri, C. Bauer, U. Becciani, Y. Becherini, J. Becker Tjus, V. Beckmann, W. Bednarek, W. Benbow, D. Benedico Ventura, J. Berdugo, D. Berge, E. Bernardini, M. G. Bernardini, S. Bernhard, K. Bernlöhr, B. Bertucci, M. -A. Besel, V. Beshley, N. Bhatt, P. Bhattacharjee, W. Bhattacharyya, S. Bhattachryya, B. Biasuzzi, G. Bicknell, C. Bigongiari, A. Biland, A. Bilinsky, W. Bilnik, B. Biondo, R. Bird, T. Bird, E. Bissaldi, M. Bitossi, O. Blanch, P. Blasi, J. Blazek, C. Bockermann, C. Boehm, L. Bogacz, M. Bogdan, M. Bohacova, C. Boisson, J. Boix, J. Bolmont, G. Bonanno, A. Bonardi, C. Bonavolontà, P. Bonifacio, F. Bonnarel, G. Bonnoli, J. Borkowski, R. Bose, Z. Bosnjak, M. Böttcher, J. -J. Bousquet, C. Boutonnet, F. Bouyjou, L. Bowman, C. Braiding, T. Brantseg, S. Brau-Nogué, J. Bregeon, M. Briggs, M. Brigida, T. Bringmann, W. Brisken, D. Bristow, R. Britto, E. Brocato, S. Bron, P. Brook, W. Brooks, A. M. Brown, K. Brügge, F. Brun, P. Brun, P. Brun, G. Brunetti, L. Brunetti, P. Bruno, T. Buanes, N. Bucciantini, G. Buchholtz, J. Buckley, V. Bugaev, R. Bühler, A. Bulgarelli, T. Bulik, M. Burton, A. Burtovoi, G. Busetto, S. Buson, J. Buss, K. Byrum, F. Cadoux, J. Calvo Tovar, R. Cameron, F. Canelli, R. Canestrari, M. Capalbi, M. Capasso, G. Capobianco, A. Caproni, P. Caraveo, J. Cardenzana, M. Cardillo, S. Carius, C. Carlile, A. Carosi, R. Carosi, E. Carquín, J. Carr, M. Carroll, J. Carter, P. -H. Carton, J. -M. Casandjian, S. Casanova, S. Casanova, E. Cascone, M. Casiraghi, A. Castellina, J. Castroviejo Mora, F. Catalani, O. Catalano, S. Catalanotti, D. Cauz, S. Cavazzani, P. Cerchiara, E. Chabanne, P. Chadwick, T. Chaleil, C. Champion, A. Chatterjee, S. Chaty, R. Chaves, A. Chen, X. Chen, X. Chen, K. Cheng, M. Chernyakova, L. Chiappetti, M. Chikawa, D. Chinn, V. R. Chitnis, N. Cho, A. Christov, J. Chudoba, M. Cieślar, M. A. Ciocci, R. Clay, S. Colafrancesco, P. Colin, J. -M. Colley, E. Colombo, J. Colome, S. Colonges, V. Conforti, V. Connaughton, S. Connell, J. Conrad, J. L. Contreras, P. Coppi, S. Corbel, J. Coridian, R. Cornat, P. Corona, D. Corti, J. Cortina, L. Cossio, A. Costa, H. Costantini, G. Cotter, B. Courty, S. Covino, G. Covone, G. Crimi, S. J. Criswell, R. Crocker, J. Croston, J. Cuadra, P. Cumani, G. Cusumano, P. Da Vela, Ø. Dale, F. D'Ammando, D. Dang, V. T. Dang, L. Dangeon, M. Daniel, I. Davids, I. Davids, B. Dawson, F. Dazzi, B. de Aguiar Costa, A. De Angelis, R. F. de Araujo Cardoso, V. De Caprio, R. de Cássia dos Anjos, G. De Cesare, A. De Franco, F. De Frondat, E. M. de Gouveia Dal Pino, I. de la Calle, C. De Lisio, R. de los Reyes Lopez, B. De Lotto, A. De Luca, J. R. T. de Mello Neto, M. de Naurois, E. de Oña Wilhelmi, F. De Palma, F. De Persio, V. de Souza, G. Decock, J. Decock, C. Deil, M. Del Santo, E. Delagnes, G. Deleglise, C. Delgado, J. Delgado, D. della Volpe, P. Deloye, M. Detournay, A. Dettlaff, J. Devin, T. Di Girolamo, C. Di Giulio, A. Di Paola, F. Di Pierro, M. A. Diaz, C. Díaz, C. Dib, J. Dick, H. Dickinson, S. Diebold, S. Digel, J. Dipold, G. Disset, A. Distefano, A. Djannati-Ataï, M. Doert, M. Dohmke, A. Domínguez, N. Dominik, J. -L. Dominique, D. Dominis Prester, A. Donat, I. Donnarumma, D. Dorner, M. Doro, J. -L. Dournaux, T. Downes, K. Doyle, G. Drake, S. Drappeau, H. Drass, D. Dravins, L. Drury, G. Dubus, L. Ducci, D. Dumas, K. Dundas Morå, D. Durand, D. D'Urso, V. Dwarkadas, J. Dyks, M. Dyrda, J. Ebr, E. Edy, K. Egberts, P. Eger, A. Egorov, S. Einecke, J. Eisch, F. Eisenkolb, C. Eleftheriadis, D. Elsaesser, D. Elsässer, D. Emmanoulopoulos, C. Engelbrecht, D. Engelhaupt, J. -P. Ernenwein, P. Escarate, S. Eschbach, C. Espinoza, P. Evans, M. Fairbairn, D. Falceta-Goncalves, A. Falcone, V. Fallah Ramazani, D. Fantinel, K. Farakos, C. Farnier, E. Farrell, G. Fasola, Y. Favre, E. Fede, R. Fedora, E. Fedorova, S. Fegan, D. Ferenc, M. Fernandez-Alonso, A. Fernández-Barral, G. Ferrand, O. Ferreira, M. Fesquet, P. Fetfatzis, E. Fiandrini, A. Fiasson, A. Filipčič, M. Filipovic, D. Fink, C. Finley, J. P. Finley, A. Finoguenov, V. Fioretti, M. Fiorini, H. Fleischhack, H. Flores, D. Florin, C. Föhr, E. Fokitis, M. V. Fonseca, L. Font, G. Fontaine, B. Fontes, M. Fornasa, M. Fornasa, A. Förster, P. Fortin, L. Fortson, N. Fouque, A. Franckowiak, A. Franckowiak, F. J. Franco, I. Freire Mota Albuquerque, L. Freixas Coromina, L. Fresnillo, C. Fruck, M. Fuessling, D. Fugazza, Y. Fujita, S. Fukami, Y. Fukazawa, T. Fukuda, Y. Fukui, S. Funk, A. Furniss, W. Gäbele, S. Gabici, A. Gadola, D. Galindo, D. D. Gall, Y. Gallant, D. Galloway, S. Gallozzi, J. A. Galvez, S. Gao, A. Garcia, B. Garcia, R. García Gil, R. Garcia López, M. Garczarczyk, D. Gardiol, C. Gargano, F. Gargano, S. Garozzo, F. Garrecht, L. Garrido, M. Garrido-Ruiz, D. Gascon, J. Gaskins, J. Gaudemard, M. Gaug, J. Gaweda, B. Gebhardt, M. Gebyehu, N. Geffroy, B. Genolini, L. Gerard, A. Ghalumyan, A. Ghedina, P. Ghislain, P. Giammaria, E. Giannakaki, F. Gianotti, S. Giarrusso, G. Giavitto, B. Giebels, T. Gieras, N. Giglietto, V. Gika, R. Gimenes, M. Giomi, P. Giommi, F. Giordano, G. Giovannini, P. Girardot, E. Giro, M. Giroletti, J. Gironnet, A. Giuliani, J. -F. Glicenstein, R. Gnatyk, N. Godinovic, P. Goldoni, G. Gomez, M. M. Gonzalez, A. González, D. Gora, K. S. Gothe, D. Gotz, J. Goullon, T. Grabarczyk, R. Graciani, J. Graham, P. Grandi, J. Granot, G. Grasseau, R. Gredig, A. J. Green, A. M. Green, T. Greenshaw, I. Grenier, S. Griffiths, A. Grillo, M. -H. Grondin, J. Grube, M. Grudzinska, J. Grygorczuk, V. Guarino, D. Guberman, S. Gunji, G. Gyuk, D. Hadasch, A. Hagedorn, L. Hagge, J. Hahn, H. Hakobyan, S. Hara, M. J. Hardcastle, T. Hassan, K. Hatanaka, T. Haubold, A. Haupt, T. Hayakawa, M. Hayashida, M. Heller, R. Heller, J. C. Helo, F. Henault, G. Henri, G. Hermann, R. Hermel, J. Herrera Llorente, J. Herrera Llorente, A. Herrero, O. Hervet, N. Hidaka, J. Hinton, W. Hirai, K. Hirotani, B. Hnatyk, J. Hoang, D. Hoffmann, W. Hofmann, T. Holch, J. Holder, S. Hooper, D. Horan, J. Hörandel, M. Hörbe, D. Horns, P. Horvath, J. Hose, J. Houles, T. Hovatta, M. Hrabovsky, D. Hrupec, J. -M. Huet, M. Huetten, G. Hughes, D. Hui, T. B. Humensky, M. Hussein, M. Iacovacci, A. Ibarra, Y. Ikeno, J. M. Illa, D. Impiombato, T. Inada, S. Incorvaia, L. Infante, Y. Inome, S. Inoue, T. Inoue, Y. Inoue, F. Iocco, K. Ioka, M. Iori, K. Ishio, K. Ishio, G. L. Israel, Y. Iwamura, C. Jablonski, A. Jacholkowska, J. Jacquemier, M. Jamrozy, P. Janecek, M. Janiak, D. Jankowsky, F. Jankowsky, P. Jean, I. Jegouzo, P. Jenke, J. J. Jimenez, M. Jingo, M. Jingo, L. Jocou, T. Jogler, C. A. Johnson, M. Jones, M. Josselin, L. Journet, I. Jung, P. Kaaret, M. Kagaya, J. Kakuwa, O. Kalekin, C. Kalkuhl, H. Kamon, R. Kankanyan, A. Karastergiou, K. Kärcher, M. Karczewski, S. Karkar, P. Karn, J. Kasperek, H. Katagiri, J. Kataoka, K. Katarzyński, S. Kato, U. Katz, N. Kawanaka, L. Kaye, D. Kazanas, N. Kelley-Hoskins, J. Kersten, B. Khélifi, D. B. Kieda, T. Kihm, S. Kimeswenger, S. Kisaka, S. Kishida, R. Kissmann, S. Klepser, W. Kluźniak, J. Knapen, J. Knapp, J. Knödlseder, B. Koch, F. Köck, J. Kocot, K. Kohri, K. Kokkotas, K. Kokkotas, D. Kolitzus, N. Komin, I. Kominis, A. Kong, Y. Konno, K. Kosack, G. Koss, M. Kossatz, G. Kowal, S. Koyama, J. Kozioł, M. Kraus, J. Krause, M. Krause, H. Krawzcynski, F. Krennrich, A. Kretzschmann, P. Kruger, H. Kubo, V. Kudryavtsev, G. Kukec Mezek, M. Kuklis, H. Kuroda, J. Kushida, A. La Barbera, N. La Palombara, V. La Parola, G. La Rosa, H. Laffon, R. Lahmann, M. Lakicevic, K. Lalik, G. Lamanna, D. Landriu, H. Landt, R. G. Lang, J. Lapington, P. Laporte, J. -P. Le Fèvre, T. Le Flour, P. Le Sidaner, S. -H. Lee, W. H. Lee, J. -P. Lees, J. Lefaucheur, K. Leffhalm, H. Leich, M. A. Leigui de Oliveira, D. Lelas, A. Lemière, M. Lemoine-Goumard, J. -P. Lenain, R. Leonard, R. Leoni, L. Lessio, G. Leto, A. Leveque, B. Lieunard, M. Limon, R. Lindemann, E. Lindfors, L. Linhoff, A. Liolios, A. Lipniacka, H. Lockart, T. Lohse, E. Łokas, S. Lombardi, F. Longo, A. Lopatin, M. Lopez, D. Loreggia, T. Louge, F. Louis, M. Louys, F. Lucarelli, D. Lucchesi, H. Lüdecke, T. Luigi, P. L. Luque-Escamilla, E. Lyard, M. C. Maccarone, T. Maccarone, T. J. Maccarone, E. Mach, G. M. Madejski, A. Madonna, F. Magniette, A. Magniez, M. Mahabir, G. Maier, P. Majumdar, P. Majumdar, M. Makariev, G. Malaguti, G. Malaspina, A. K. Mallot, A. Malouf, S. Maltezos, D. Malyshev, A. Mancilla, D. Mandat, G. Maneva, M. Manganaro, S. Mangano, P. Manigot, N. Mankushiyil, K. Mannheim, N. Maragos, D. Marano, P. Marchegiani, J. A. Marcomini, A. Marcowith, M. Mariotti, M. Marisaldi, S. Markoff, C. Martens, J. Martí, J. -M. Martin, L. Martin, P. Martin, G. Martínez, M. Martínez, O. Martínez, K. Martynyuk-Lototskyy, R. Marx, N. Masetti, P. Massimino, A. Mastichiadis, S. Mastroianni, M. Mastropietro, S. Masuda, H. Matsumoto, S. Matsuoka, N. Matthews, S. Mattiazzo, G. Maurin, N. Maxted, N. Maxted, J. Maya, M. Mayer, D. Mazin, M. N. Mazziotta, L. Mc Comb, N. McCubbin, I. McHardy, C. Medina, F. Mehrez, C. Melioli, D. Melkumyan, T. Melse, S. Mereghetti, M. Merk, P. Mertsch, J. -L. Meunier, T. Meures, M. Meyer, J. L. Meyrelles jr, A. Miccichè, T. Michael, J. Michałowski, P. Mientjes, I. Mievre, A. Mihailidis, J. Miller, T. Mineo, M. Minuti, N. Mirabal, F. Mirabel, J. M. Miranda, R. Mirzoyan, A. Mitchell, T. Mizuno, R. Moderski, I. Mognet, M. Mohammed, R. Moharana, L. Mohrmann, E. Molinari, P. Molyneux, E. Monmarthe, G. Monnier, T. Montaruli, C. Monte, I. Monteiro, D. Mooney, P. Moore, A. Moralejo, C. Morello, E. Moretti, K. Mori, P. Morris, A. Morselli, F. Moscato, D. Motohashi, F. Mottez, Y. Moudden, E. Moulin, S. Mueller, R. Mukherjee, P. Munar, M. Munari, C. Mundell, J. Mundet, H. Muraishi, K. Murase, A. Muronga, A. Murphy, N. Nagar, S. Nagataki, T. Nagayoshi, B. K. Nagesh, T. Naito, D. Nakajima, D. Nakajima, T. Nakamori, K. Nakayama, J. Nanni, D. Naumann, P. Nayman, L. Nellen, R. Nemmen, A. Neronov, N. Neyroud, T. Nguyen, T. T. Nguyen, T. Nguyen Trung, L. Nicastro, J. Nicolau-Kukliński, F. Niederwanger, A. Niedźwiecki, J. Niemiec, D. Nieto, M. Nievas-Rosillo, A. Nikolaidis, M. Nikołajuk, K. Nishijima, K. -I. Nishikawa, G. Nishiyama, K. Noda, K. Noda, L. Nogues, S. Nolan, R. Northrop, D. Nosek, M. Nöthe, B. Novosyadlyj, L. Nozka, F. Nunio, L. Oakes, P. O'Brien, C. Ocampo, G. Occhipinti, J. P. Ochoa, A. OFaolain de Bhroithe, R. Oger, Y. Ohira, M. Ohishi, S. Ohm, H. Ohoka, N. Okazaki, A. Okumura, J. -F. Olive, D. Olszowski, R. A. Ong, S. Ono, M. Orienti, R. Orito, A. Orlati, J. Osborne, M. Ostrowski, D. Ottaway, N. Otte, S. Öttl, E. Ovcharov, I. Oya, A. Ozieblo, M. Padovani, I. Pagano, S. Paiano, A. Paizis, J. Palacio, M. Palatka, J. Pallotta, K. Panagiotidis, J. -L. Panazol, D. Paneque, M. Panter, M. R. Panzera, R. Paoletti, M. Paolillo, A. Papayannis, G. Papyan, A. Paravac, J. M. Paredes, G. Pareschi, N. Park, D. Parsons, P. Paśko, S. Pavy, M. Pech, A. Peck, G. Pedaletti, A. Pe'er, S. Peet, D. Pelat, A. Pepato, M. d. C. Perez, L. Perri, M. Perri, M. Persic, M. Persic, A. Petrashyk, P. -O. Petrucci, O. Petruk, B. Peyaud, M. Pfeifer, G. Pfeiffer, G. Piano, D. Pieloth, E. Pierre, F. Pinto de Pinho, C. Pio García, Y. Piret, A. Pisarski, S. Pita, Ł. Platos, R. Platzer, S. Podkladkin, L. Pogosyan, M. Pohl, P. Poinsignon, A. Pollo, A. Porcelli, J. Porthault, W. Potter, S. Poulios, J. Poutanen, E. Prandini, E. Prandini, J. Prast, K. Pressard, G. Principe, F. Profeti, D. Prokhorov, H. Prokoph, M. Prouza, R. Pruchniewicz, G. Pruteanu, E. Pueschel, G. Pühlhofer, I. Puljak, M. Punch, S. Pürckhauer, R. Pyzioł, F. Queiroz, E. J. Quel, J. Quinn, A. Quirrenbach, I. Rafighi, S. Rainò, P. J. Rajda, M. Rameez, R. Rando, R. C. Rannot, M. Rataj, T. Ravel, S. Razzaque, P. Reardon, I. Reichardt, O. Reimann, A. Reimer, O. Reimer, A. Reisenegger, M. Renaud, S. Renner, T. Reposeur, B. Reville, A. Rezaeian, W. Rhode, D. Ribeiro, R. Ribeiro Prado, M. Ribó, G. Richards, M. G. Richer, T. Richtler, J. Rico, J. Ridky, F. Rieger, M. Riquelme, P. R. Ristori, S. Rivoire, V. Rizi, E. Roache, J. Rodriguez, G. Rodriguez Fernandez, J. J. Rodríguez Vázquez, G. Rojas, P. Romano, G. Romeo, M. Roncadelli, J. Rosado, J. Rose, S. Rosen, S. Rosier Lees, D. Ross, G. Rouaix, J. Rousselle, A. C. Rovero, G. Rowell, F. Roy, S. Royer, A. Rubini, B. Rudak, A. Rugliancich, W. Rujopakarn, C. Rulten, M. Rupiński, F. Russo, F. Russo, K. Rutkowski, O. Saavedra, S. Sabatini, B. Sacco, I. Sadeh, E. O. Saemann, S. Safi-Harb, A. Saggion, V. Sahakian, T. Saito, N. Sakaki, S. Sakurai, A. Salamon, M. Salega, D. Salek, F. Salesa Greus, J. Salgado, G. Salina, L. Salinas, A. Salini, D. Sanchez, M. Sanchez-Conde, H. Sandaker, A. Sandoval, P. Sangiorgi, M. Sanguillon, H. Sano, M. Santander, A. Santangelo, E. M. Santos, R. Santos-Lima, A. Sanuy, L. Sapozhnikov, S. Sarkar, K. Satalecka, K. Satalecka, Y. Sato, R. Savalle, M. Sawada, F. Sayède, S. Schanne, T. Schanz, E. J. Schioppa, S. Schlenstedt, J. Schmid, T. Schmidt, J. Schmoll, M. Schneider, H. Schoorlemmer, P. Schovanek, A. Schubert, E. -M. Schullian, J. Schultze, A. Schulz, S. Schulz, K. Schure, F. Schussler, T. Schwab, U. Schwanke, J. Schwarz, T. Schweizer, S. Schwemmer, U. Schwendicke, C. Schwerdt, E. Sciacca, S. Scuderi, A. Segreto, J. -H. Seiradakis, G. H. Sembroski, D. Semikoz, O. Sergijenko, N. Serre, M. Servillat, K. Seweryn, N. Shafi, A. Shalchi, M. Sharma, M. Shayduk, R. C. Shellard, T. Shibata, A. Shigenaka, I. Shilon, E. Shum, L. Sidoli, M. Sidz, J. Sieiro, H. Siejkowski, J. Silk, A. Sillanpää, D. Simone, H. Simpson, B. B. Singh, A. Sinha, G. Sironi, J. Sitarek, P. Sizun, V. Sliusar, V. Sliusar, A. Smith, D. Sobczyńska, H. Sol, G. Sottile, M. Sowiński, F. Spanier, G. Spengler, R. Spiga, R. Stadler, O. Stahl, A. Stamerra, S. Stanič, R. Starling, D. Staszak, Ł. Stawarz, R. Steenkamp, S. Stefanik, C. Stegmann, S. Steiner, C. Stella, M. Stephan, N. Stergioulas, R. Sternberger, M. Sterzel, B. Stevenson, F. Stinzing, M. Stodulska, M. Stodulski, T. Stolarczyk, G. Stratta, U. Straumann, L. Stringhetti, M. Strzys, R. Stuik, K. -H. Sulanke, T. Suomijärvi, A. D. Supanitsky, T. Suric, I. Sushch, P. Sutcliffe, J. Sykes, M. Szanecki, T. Szepieniec, P. Szwarnog, A. Tacchini, K. Tachihara, G. Tagliaferri, H. Tajima, H. Takahashi, K. Takahashi, M. Takahashi, L. Takalo, S. Takami, J. Takata, J. Takeda, G. Talbot, T. Tam, M. Tanaka, S. Tanaka, T. Tanaka, Y. Tanaka, C. Tanci, S. Tanigawa, M. Tavani, F. Tavecchio, J. -P. Tavernet, K. Tayabaly, A. Taylor, L. A. Tejedor, I. Telezhinsky, F. Temme, P. Temnikov, C. Tenzer, Y. Terada, J. C. Terrazas, R. Terrier, D. Terront, T. Terzic, D. Tescaro, M. Teshima, M. Teshima, V. Testa, D. Tezier, J. Thayer, J. Thornhill, S. Thoudam, D. Thuermann, L. Tibaldo, A. Tiengo, M. C. Timpanaro, D. Tiziani, M. Tluczykont, C. J. Todero Peixoto, F. Tokanai, M. Tokarz, K. Toma, J. Tomastik, Y. Tomono, A. Tonachini, D. Tonev, K. Torii, M. Tornikoski, D. F. Torres, M. Torres, E. Torresi, G. Toso, G. Tosti, T. Totani, N. Tothill, F. Toussenel, G. Tovmassian, T. Toyama, P. Travnicek, C. Trichard, M. Trifoglio, I. Troyano Pujadas, M. Trzeciak, K. Tsinganos, S. Tsujimoto, T. Tsuru, Y. Uchiyama, G. Umana, Y. Umetsu, S. S. Upadhya, M. Uslenghi, V. Vagelli, F. Vagnetti, J. Valdes-Galicia, M. Valentino, P. Vallania, L. Valore, W. van Driel, C. van Eldik, B. van Soelen, J. Vandenbroucke, J. Vanderwalt, G. Vasileiadis, V. Vassiliev, J. R. Vázquez, M. L. Vázquez Acosta, M. Vecchi, A. Vega, I. Vegas, P. Veitch, P. Venault, L. Venema, C. Venter, S. Vercellone, S. Vergani, K. Verma, V. Verzi, G. P. Vettolani, C. Veyssiere, A. Viana, N. Viaux, J. Vicha, C. Vigorito, P. Vincent, S. Vincent, J. Vink, V. Vittorini, N. Vlahakis, L. Vlahos, H. Voelk, V. Voisin, A. Vollhardt, A. Volpicelli, H. von Brand, S. Vorobiov, I. Vovk, M. Vrastil, L. V. Vu, T. Vuillaume, R. Wagner, R. Wagner, S. J. Wagner, S. P. Wakely, T. Walstra, R. Walter, T. Walther, J. E. Ward, M. Ward, K. Warda, D. Warren, S. Wassberg, J. J. Watson, P. Wawer, R. Wawrzaszek, N. Webb, P. Wegner, O. Weiner, A. Weinstein, R. Wells, F. Werner, H. Wetteskind, M. White, R. White, M. Więcek, A. Wierzcholska, S. Wiesand, R. Wijers, P. Wilcox, N. Wild, A. Wilhelm, M. Wilkinson, M. Will, M. Will, D. A. Williams, J. T. Williams, R. Willingale, N. Wilson, M. Winde, K. Winiarski, H. Winkler, M. Winter, R. Wischnewski, E. Witt, P. Wojcik, D. Wolf, M. Wood, A. Wörnlein, E. Wu, T. Wu, K. K. Yadav, H. Yamamoto, T. Yamamoto, N. Yamane, R. Yamazaki, S. Yanagita, L. Yang, D. Yelos, A. Yoshida, M. Yoshida, T. Yoshida, S. Yoshiike, T. Yoshikoshi, P. Yu, V. Zabalza, D. Zaborov, M. Zacharias, G. Zaharijas, A. Zajczyk, L. Zampieri, F. Zandanel, R. Zanmar Sanchez, D. Zaric, D. Zavrtanik, M. Zavrtanik, A. Zdziarski, A. Zech, H. Zechlin, A. Zhao, V. Zhdanov, A. Ziegler, J. Ziemann, K. Ziętara, A. Zink, J. Ziółkowski, V. Zitelli, A. Zoli, J. Zorn, P. Żychowski

List of contributions from the Cherenkov Telescope Array (CTA) Consortium presented at the 6th International Symposium on High-Energy Gamma-Ray Astronomy (Gamma 2016), July 11-15, 2016, in Heidelberg, Germany. Read More

We propose an approach to modeling of AC motors entirely based on analytical mechanics. Symmetry and connection constraints are moreover incorporated in the energy function from which the models are derived. The approach is especially suited to handle magnetic saturation, but also directly recovers the standard unsaturated models of the literature. Read More

We provide a method for constructing central idempotents in the Brauer algebra relating to the splitting of certain short exact sequences. We also determine some of the primitive central idempotents, and relate properties of the idempotents to known facts about the representation theory of the algebra. Read More

We propose a simple nonlinear observer for estimating the attitude and velocity of a rigid body from the measurements of specific acceleration, angular velocity, magnetic field (in body axes), and linear velocity (in body axes). It is uniformly globally exponentially convergent, and also enjoys other nice properties: global decoupling of pitch and roll estimation from magnetic measurements, good local behavior, and easy tuning. The observer is "geometry-free", in the sense that it respects only asymptotically the rotational geometry. Read More

Gamma-ray binaries consist of a neutron star or a black hole interacting with a normal star to produce gamma-ray emission that dominates the radiative output of the system. Only a handful of such systems have been previously discovered, all within our Galaxy. Here we report the discovery with the Fermi Large Area Telescope (LAT) of a luminous gamma-ray binary in the Large Magellanic Cloud from a search for periodic modulation in all sources in the third Fermi LAT catalog. Read More

Polarized thermal emission from interstellar dust grains can be used to map magnetic fields in star forming molecular clouds and the diffuse interstellar medium (ISM). The Balloon-borne Large Aperture Submillimeter Telescope for Polarimetry (BLASTPol) flew from Antarctica in 2010 and 2012 and produced degree-scale polarization maps of several nearby molecular clouds with arcminute resolution. The success of BLASTPol has motivated a next-generation instrument, BLAST-TNG, which will use more than 3000 linear polarization sensitive microwave kinetic inductance detectors (MKIDs) combined with a 2. Read More

2016Aug
Authors: Planck Collaboration, N. Aghanim, Y. Akrami, M. Ashdown, J. Aumont, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, K. Benabed, M. Bersanelli, P. Bielewicz, A. Bonaldi, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, C. Burigana, E. Calabrese, J. -F. Cardoso, A. Challinor, H. C. Chiang, L. P. L. Colombo, C. Combet, B. P. Crill, A. Curto, F. Cuttaia, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, E. Di Valentino, C. Dickinson, J. M. Diego, O. Doré, A. Ducout, X. Dupac, S. Dusini, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, Y. Fantaye, F. Finelli, F. Forastieri, M. Frailis, E. Franceschi, A. Frolov, S. Galeotta, S. Galli, K. Ganga, R. T. Génova-Santos, M. Gerbino, J. González-Nuevo, K. M. Górski, A. Gruppuso, J. E. Gudmundsson, D. Herranz, E. Hivon, Z. Huang, A. H. Jaffe, W. C. Jones, E. Keihänen, R. Keskitalo, K. Kiiveri, J. Kim, T. S. Kisner, L. Knox, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, G. Lagache, J. -M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, M. Le Jeune, F. Levrier, A. Lewis, P. B. Lilje, M. Lilley, V. Lindholm, M. López-Caniego, P. M. Lubin, Y. -Z. Ma, J. F. Macías-Pérez, G. Maggio, D. Maino, N. Mandolesi, A. Mangilli, M. Maris, P. G. Martin, E. Martínez-González, S. Matarrese, N. Mauri, J. D. McEwen, P. R. Meinhold, A. Mennella, M. Migliaccio, M. Millea, M. -A. Miville-Deschênes, D. Molinari, A. Moneti, L. Montier, G. Morgante, A. Moss, A. Narimani, P. Natoli, C. A. Oxborrow, L. Pagano, D. Paoletti, G. Patanchon, L. Patrizii, V. Pettorino, F. Piacentini, L. Polastri, G. Polenta, J. -L. Puget, J. P. Rachen, B. Racine, M. Reinecke, M. Remazeilles, A. Renzi, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Ruiz-Granados, L. Salvati, M. Sandri, M. Savelainen, D. Scott, C. Sirignano, G. Sirri, L. Stanco, A. -S. Suur-Uski, J. A. Tauber, D. Tavagnacco, M. Tenti, L. Toffolatti, M. Tomasi, M. Tristram, T. Trombetti, J. Valiviita, F. Van Tent, P. Vielva, F. Villa, N. Vittorio, B. D. Wandelt, I. K. Wehus, M. White, A. Zacchei, A. Zonca

The six parameters of the standard $\Lambda$CDM model have best-fit values derived from the Planck temperature power spectrum that are shifted somewhat from the best-fit values derived from WMAP data. These shifts are driven by features in the Planck temperature power spectrum at angular scales that had never before been measured to cosmic-variance level precision. We investigate these shifts to determine whether they are within the range of expectation and to understand their origin in the data. Read More

We report the results of a 16-month monitoring campaign using the Swift satellite of PSR B0540-69, a young pulsar in the Large Magellanic Cloud. Phase connection was maintained throughout the campaign so that a reliable ephemeris could be determined, and the length of the campaign is adequate to accurately determine the spin frequency and its first and second derivatives. The braking index is 0. Read More

We construct a representation of the Temperley-Lieb algebra from a multiplicity-free semisimple monoidal Abelian category ${\cal C}$, with two simple objects $\lambda$ and $\nu$ such that $\lambda\otimes\nu$ is simple and Hom$_{\cal C}(\lambda\otimes \lambda, \nu)$ is not empty. A self-contained manual to tensor categories is also provided as well as a summary of the best known example of the construction: Schur-Weyl duality for $U_q(sl_2))$. Read More

2016Jun
Authors: Planck Collaboration, N. Aghanim, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, K. Benabed, J. -P. Bernard, M. Bersanelli, P. Bielewicz, A. Bonaldi, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, F. Boulanger, A. Bracco, C. Burigana, E. Calabrese, J. -F. Cardoso, H. C. Chiang, L. P. L. Colombo, C. Combet, B. Comis, B. P. Crill, A. Curto, F. Cuttaia, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, J. -M. Delouis, E. Di Valentino, C. Dickinson, J. M. Diego, O. Doré, M. Douspis, A. Ducout, X. Dupac, S. Dusini, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, E. Falgarone, Y. Fantaye, F. Finelli, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frolov, S. Galeotta, S. Galli, K. Ganga, R. T. Génova-Santos, M. Gerbino, T. Ghosh, M. Giard, J. González-Nuevo, K. M. Górski, A. Gregorio, A. Gruppuso, J. E. Gudmundsson, F. K. Hansen, G. Helou, D. Herranz, E. Hivon, Z. Huang, A. H. Jaffe, W. C. Jones, E. Keihänen, R. Keskitalo, T. S. Kisner, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, G. Lagache, A. Lähteenmäki, J. -M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, M. Le Jeune, F. Levrier, M. Liguori, P. B. Lilje, M. López-Caniego, P. M. Lubin, J. F. Macías-Pérez, G. Maggio, D. Maino, N. Mandolesi, A. Mangilli, M. Maris, P. G. Martin, E. Martínez-González, S. Matarrese, N. Mauri, J. D. McEwen, A. Melchiorri, A. Mennella, M. Migliaccio, S. Mitra, M. -A. Miville-Deschênes, D. Molinari, A. Moneti, L. Montier, G. Morgante, A. Moss, P. Naselsky, H. U. Nørgaard-Nielsen, C. A. Oxborrow, L. Pagano, D. Paoletti, B. Partridge, L. Patrizii, O. Perdereau, L. Perotto, V. Pettorino, F. Piacentini, S. Plaszczynski, G. Polenta, J. -L. Puget, J. P. Rachen, M. Reinecke, M. Remazeilles, A. Renzi, G. Rocha, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Ruiz-Granados, L. Salvati, M. Sandri, M. Savelainen, D. Scott, C. Sirignano, G. Sirri, L. Stanco, A. -S. Suur-Uski, J. A. Tauber, M. Tenti, L. Toffolatti, M. Tomasi, M. Tristram, T. Trombetti, J. Valiviita, J. Vansyngel, F. Van Tent, P. Vielva, B. D. Wandelt, I. K. Wehus, A. Zacchei, A. Zonca

The characterization of the Galactic foregrounds has been shown to be the main obstacle in the challenging quest to detect primordial B-modes in the polarized microwave sky. We make use of the Planck-HFI 2015 data release at high frequencies to place new constraints on the properties of the polarized thermal dust emission at high Galactic latitudes. Here, we specifically study the spatial variability of the dust polarized spectral energy distribution, and its potential impact on the determination of the tensor-to-scalar ratio. Read More

We propose an exactly solvable Hamiltonian for topological phases in $3+1$ dimensions utilising ideas from higher lattice gauge theory, where the gauge symmetry is given by a finite 2-group. We explicitly show that the model is a Hamiltonian realisation of Yetter's homotopy 2-type topological quantum field theory whereby the groundstate projector of the model defined on the manifold $M^3$ is given by the partition function of the underlying topological quantum field theory for $M^3\times [0,1]$. We show that this result holds in any dimension and illustrate it by computing the ground state degeneracy for a selection of spatial manifolds and 2-groups. Read More

2016Jun
Authors: Planck Collaboration, P. A. R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, N. Bartolo, E. Battaner, R. Battye, K. Benabed, G. J. Bendo, A. Benoit-Lévy, J. -P. Bernard, M. Bersanelli, P. Bielewicz, A. Bonaldi, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, C. Burigana, R. C. Butler, E. Calabrese, J. -F. Cardoso, A. Catalano, A. Chamballu, R. -R. Chary, X. Chen, H. C. Chiang, P. R. Christensen, D. L. Clements, L. P. L. Colombo, C. Combet, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, L. Danese, R. D. Davies, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, C. Dickinson, J. M. Diego, H. Dole, S. Donzelli, O. Doré, M. Douspis, A. Ducout, X. Dupac, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, F. Finelli, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frejsel, S. Galeotta, K. Ganga, M. Giard, Y. Giraud-Héraud, E. Gjerløw, J. González-Nuevo, K. M. Górski, A. Gregorio, A. Gruppuso, F. K. Hansen, D. Hanson, D. L. Harrison, S. Henrot-Versillé, C. Hernández-Monteagudo, D. Herranz, S. R. Hildebrandt, E. Hivon, M. Hobson, W. A. Holmes, A. Hornstrup, W. Hovest, K. M. Huffenberger, G. Hurier, F. P. Israel, A. H. Jaffe, T. R. Jaffe, W. C. Jones, M. Juvela, E. Keihänen, R. Keskitalo, T. S. Kisner, R. Kneissl, J. Knoche, M. Kunz, H. Kurki-Suonio, G. Lagache, A. Lähteenmäki, J. -M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, R. Leonardi, F. Levrier, M. Liguori, P. B. Lilje, M. Linden-Vørnle, M. López-Caniego, P. M. Lubin, J. F. Macías-Pérez, S. Madden, B. Maffei, D. Maino, N. Mandolesi, M. Maris, P. G. Martin, E. Martínez-González, S. Masi, S. Matarrese, P. Mazzotta, L. Mendes, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, P. Natoli, H. U. Nørgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, C. A. Oxborrow, L. Pagano, F. Pajot, R. Paladini, D. Paoletti, B. Partridge, F. Pasian, T. J. Pearson, M. Peel, O. Perdereau, F. Perrotta, V. Pettorino, F. Piacentini, M. Piat, E. Pierpaoli, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, L. Popa, G. W. Pratt, S. Prunet, J. -L. Puget, J. P. Rachen, M. Reinecke, M. Remazeilles, C. Renault, S. Ricciardi, I. Ristorcelli, G. Rocha, C. Rosset, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Rusholme, M. Sandri, G. Savini, D. Scott, L. D. Spencer, V. Stolyarov, R. Sudiwala, D. Sutton, A. -S. Suur-Uski, J. -F. Sygnet, J. A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, M. Tucci, G. Umana, L. Valenziano, J. Valiviita, B. Van Tent, P. Vielva, F. Villa, L. A. Wade, B. D. Wandelt, R. Watson, I. K. Wehus, D. Yvon, A. Zacchei, A. Zonca

Continuum spectra covering centimetre to submillimetre wavelengths are presented for a northern sample of 104 extragalactic radio sources, mainly active galactic nuclei, based on four-epoch Planck data. The nine Planck frequencies, from 30 to 857 GHz, are complemented by a set of simultaneous ground-based radio observations between 1.1 and 37 GHz. Read More

The field of gamma-ray astronomy has seen important progress during the last decade, yet there exists so far no common software framework for the scientific analysis of gamma-ray telescope data. We propose to fill this gap by means of the GammaLib software, a generic library that we have developed to support the analysis of gamma-ray event data. GammaLib has been written in C++ and all functionality is available in Python through an extension module. Read More

Within four nearby (d < 160 pc) molecular clouds, we statistically evaluate the structure of the interstellar magnetic field, projected on the plane of the sky and integrated along the line of sight, as inferred from the polarized thermal emission of Galactic dust observed by Planck at 353 GHz and from the optical and NIR polarization of background starlight. We compare the dispersion of the field orientation directly in vicinities with an area equivalent to that subtended by the Planck effective beam at 353 GHz (10') and using the second-order structure functions of the field orientation angles. We find that the average dispersion of the starlight-inferred field orientations within 10'-diameter vicinities is less than 20 deg, and that at these scales the mean field orientation is on average within 5 deg of that inferred from the submillimetre polarization observations in the considered regions. Read More

2016May
Authors: Planck Collaboration, N. Aghanim, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, K. Benabed, J. -P. Bernard, M. Bersanelli, P. Bielewicz, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, F. Boulanger, C. Burigana, E. Calabrese, J. -F. Cardoso, J. Carron, H. C. Chiang, L. P. L. Colombo, B. Comis, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, P. de Bernardis, G. de Zotti, J. Delabrouille, E. Di Valentino, C. Dickinson, J. M. Diego, O. Doré, M. Douspis, A. Ducout, X. Dupac, S. Dusini, F. Elsner, T. A. Enßlin, H. K. Eriksen, E. Falgarone, Y. Fantaye, F. Finelli, F. Forastieri, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frolov, S. Galeotta, S. Galli, K. Ganga, R. T. Génova-Santos, M. Gerbino, T. Ghosh, Y. Giraud-Héraud, J. González-Nuevo, K. M. Górski, A. Gruppuso, J. E. Gudmundsson, F. K. Hansen, G. Helou, S. Henrot-Versillé, D. Herranz, E. Hivon, Z. Huang, A. H. Jaffe, W. C. Jones, E. Keihänen, R. Keskitalo, K. Kiiveri, T. S. Kisner, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, J. -M. Lamarre, M. Langer, A. Lasenby, M. Lattanzi, C. R. Lawrence, M. Le Jeune, F. Levrier, P. B. Lilje, M. Lilley, V. Lindholm, M. López-Caniego, Y. -Z. Ma, J. F. Macías-Pérez, G. Maggio, D. Maino, N. Mandolesi, A. Mangilli, M. Maris, P. G. Martin, E. Martínez-González, S. Matarrese, N. Mauri, J. D. McEwen, A. Melchiorri, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, D. Molinari, A. Moneti, L. Montier, G. Morgante, A. Moss, P. Natoli, C. A. Oxborrow, L. Pagano, D. Paoletti, G. Patanchon, O. Perdereau, L. Perotto, V. Pettorino, F. Piacentini, S. Plaszczynski, L. Polastri, G. Polenta, J. -L. Puget, J. P. Rachen, B. Racine, M. Reinecke, M. Remazeilles, A. Renzi, G. Rocha, C. Rosset, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Ruiz-Granados, L. Salvati, M. Sandri, M. Savelainen, D. Scott, C. Sirignano, G. Sirri, J. D. Soler, L. D. Spencer, A. -S. Suur-Uski, J. A. Tauber, D. Tavagnacco, M. Tenti, L. Toffolatti, M. Tomasi, M. Tristram, T. Trombetti, J. Valiviita, F. Van Tent, P. Vielva, F. Villa, N. Vittorio, B. D. Wandelt, I. K. Wehus, A. Zacchei, A. Zonca

Using the Planck 2015 data release (PR2) temperature maps, we separate Galactic thermal dust emission from cosmic infrared background (CIB) anisotropies. For this purpose, we implement a specifically tailored component-separation method, the so-called generalized needlet internal linear combination (GNILC) method, which uses spatial information (the angular power spectra) to disentangle the Galactic dust emission and CIB anisotropies. We produce significantly improved all-sky maps of Planck thermal dust emission, with reduced CIB contamination, at 353, 545, and 857 GHz. Read More

We present a large-scale combination of near-infrared (near-IR) interstellar polarization data from background starlight with polarized emission data at submillimeter (sub-mm) wavelengths for the Vela C molecular cloud. The near-IR data consist of more than 6700 detections probing a range of visual extinctions between $2$ and $20\,$mag in and around the cloud. The sub-mm data was collected in Antartica by the Balloon-borne Large Aperture Submillimeter Telescope for Polarimetry (BLASTPol). Read More

2016May
Authors: Planck Collaboration, N. Aghanim, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, K. Benabed, J. -P. Bernard, M. Bersanelli, P. Bielewicz, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, C. Burigana, E. Calabrese, J. -F. Cardoso, J. Carron, H. C. Chiang, L. P. L. Colombo, B. Comis, D. Contreras, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, F. -X. Désert, E. Di Valentino, C. Dickinson, J. M. Diego, O. Doré, A. Ducout, X. Dupac, S. Dusini, F. Elsner, T. A. Enßlin, H. K. Eriksen, Y. Fantaye, F. Finelli, F. Forastieri, M. Frailis, E. Franceschi, A. Frolov, S. Galeotta, S. Galli, K. Ganga, R. T. Génova-Santos, M. Gerbino, Y. Giraud-Héraud, J. González-Nuevo, K. M. Górski, A. Gruppuso, J. E. Gudmundsson, F. K. Hansen, S. Henrot-Versillé, D. Herranz, E. Hivon, Z. Huang, A. H. Jaffe, W. C. Jones, E. Keihänen, R. Keskitalo, K. Kiiveri, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, J. -M. Lamarre, M. Langer, A. Lasenby, M. Lattanzi, C. R. Lawrence, M. Le Jeune, J. P. Leahy, F. Levrier, M. Liguori, P. B. Lilje, V. Lindholm, M. López-Caniego, Y. -Z. Ma, J. F. Macías-Pérez, G. Maggio, D. Maino, N. Mandolesi, M. Maris, P. G. Martin, E. Martínez-González, S. Matarrese, N. Mauri, J. D. McEwen, P. R. Meinhold, A. Melchiorri, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, D. Molinari, A. Moneti, G. Morgante, A. Moss, P. Natoli, L. Pagano, D. Paoletti, G. Patanchon, L. Patrizii, L. Perotto, V. Pettorino, F. Piacentini, L. Polastri, G. Polenta, J. P. Rachen, B. Racine, M. Reinecke, M. Remazeilles, A. Renzi, G. Rocha, C. Rosset, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Ruiz-Granados, M. Sandri, M. Savelainen, D. Scott, C. Sirignano, G. Sirri, L. D. Spencer, A. -S. Suur-Uski, J. A. Tauber, D. Tavagnacco, M. Tenti, L. Toffolatti, M. Tomasi, M. Tristram, T. Trombetti, J. Valiviita, F. Van Tent, P. Vielva, F. Villa, N. Vittorio, B. D. Wandelt, I. K. Wehus, A. Zacchei, A. Zonca

Parity violating extensions of the standard electromagnetic theory cause in vacuo rotation of the plane of polarization of propagating photons. This effect, also known as cosmic birefringence, impacts the cosmic microwave background (CMB) anisotropy angular power spectra, producing non-vanishing $T$--$B$ and $E$--$B$ correlations that are otherwise null when parity is a symmetry. Here we present new constraints on an isotropic rotation, parametrized by the angle $\alpha$, derived from Planck 2015 CMB polarization data. Read More

Starting from the symmetric group $S_n$, we construct two fiat $2$-categories. One of them can be viewed as the fiat "extension" of the natural $2$-category associated with the symmetric inverse semigroup (considered as an ordered semigroup with respect to the natural order). This $2$-category provides a fiat categorification for the integral semigroup algebra of the symmetric inverse semigroup. Read More

2016May
Authors: Planck Collaboration, R. Adam, N. Aghanim, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, R. Battye, K. Benabed, J. -P. Bernard, M. Bersanelli, P. Bielewicz, J. J. Bock, A. Bonaldi, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, M. Bucher, C. Burigana, E. Calabrese, J. -F. Cardoso, J. Carron, H. C. Chiang, L. P. L. Colombo, C. Combet, B. Comis, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, E. Di Valentino, C. Dickinson, J. M. Diego, O. Doré, M. Douspis, A. Ducout, X. Dupac, F. Elsner, T. A. Enßlin, H. K. Eriksen, E. Falgarone, Y. Fantaye, F. Finelli, F. Forastieri, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frolov, S. Galeotta, S. Galli, K. Ganga, R. T. Génova-Santos, M. Gerbino, T. Ghosh, J. González-Nuevo, K. M. Górski, A. Gruppuso, J. E. Gudmundsson, F. K. Hansen, G. Helou, S. Henrot-Versillé, D. Herranz, E. Hivon, Z. Huang, S. Ili_, A. H. Jaffe, W. C. Jones, E. Keihänen, R. Keskitalo, T. S. Kisner, L. Knox, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, G. Lagache, A. Lähteenmäki, J. -M. Lamarre, M. Langer, A. Lasenby, M. Lattanzi, C. R. Lawrence, M. Le Jeune, F. Levrier, A. Lewis, M. Liguori, P. B. Lilje, M. López-Caniego, Y. -Z. Ma, J. F. Macías-Pérez, G. Maggio, A. Mangilli, M. Maris, P. G. Martin, E. Martínez-González, S. Matarrese, N. Mauri, J. D. McEwen, P. R. Meinhold, A. Melchiorri, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, D. Molinari, A. Moneti, L. Montier, G. Morgante, A. Moss, P. Naselsky, P. Natoli, C. A. Oxborrow, L. Pagano, D. Paoletti, B. Partridge, G. Patanchon, L. Patrizii, O. Perdereau, L. Perotto, V. Pettorino, F. Piacentini, S. Plaszczynski, L. Polastri, G. Polenta, J. -L. Puget, J. P. Rachen, B. Racine, M. Reinecke, M. Remazeilles, A. Renzi, G. Rocha, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Ruiz-Granados, L. Salvati, M. Sandri, M. Savelainen, D. Scott, G. Sirri, R. Sunyaev, A. -S. Suur-Uski, J. A. Tauber, M. Tenti, L. Toffolatti, M. Tomasi, M. Tristram, T. Trombetti, J. Valiviita, F. Van Tent, P. Vielva, F. Villa, N. Vittorio, B. D. Wandelt, I. K. Wehus, M. White, A. Zacchei, A. Zonca

We investigate constraints on cosmic reionization extracted from the Planck cosmic microwave background (CMB) data. We combine the Planck CMB anisotropy data in temperature with the low-multipole polarization data to fit LCDM models with various parameterizations of the reionization history. We obtain a Thomson optical depth tau=0. Read More

2016May
Authors: Planck Collaboration, N. Aghanim, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, R. Battye, K. Benabed, J. -P. Bernard, M. Bersanelli, P. Bielewicz, J. J. Bock, A. Bonaldi, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, F. Boulanger, M. Bucher, C. Burigana, R. C. Butler, E. Calabrese, J. -F. Cardoso, J. Carron, A. Challinor, H. C. Chiang, L. P. L. Colombo, C. Combet, B. Comis, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, J. -M. Delouis, E. Di Valentino, C. Dickinson, J. M. Diego, O. Doré, M. Douspis, A. Ducout, X. Dupac, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, E. Falgarone, Y. Fantaye, F. Finelli, F. Forastieri, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frolov, S. Galeotta, S. Galli, K. Ganga, R. T. Génova-Santos, M. Gerbino, T. Ghosh, J. González-Nuevo, K. M. Górski, S. Gratton, A. Gruppuso, J. E. Gudmundsson, F. K. Hansen, G. Helou, S. Henrot-Versillé, D. Herranz, E. Hivon, Z. Huang, S. Ilic, A. H. Jaffe, W. C. Jones, E. Keihänen, R. Keskitalo, T. S. Kisner, L. Knox, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, G. Lagache, J. -M. Lamarre, M. Langer, A. Lasenby, M. Lattanzi, C. R. Lawrence, M. Le Jeune, J. P. Leahy, F. Levrier, M. Liguori, P. B. Lilje, M. López-Caniego, Y. -Z. Ma, J. F. Macías-Pérez, G. Maggio, A. Mangilli, M. Maris, P. G. Martin, E. Martínez-González, S. Matarrese, N. Mauri, J. D. McEwen, P. R. Meinhold, A. Melchiorri, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, D. Molinari, A. Moneti, L. Montier, G. Morgante, A. Moss, S. Mottet, P. Naselsky, P. Natoli, C. A. Oxborrow, L. Pagano, D. Paoletti, B. Partridge, G. Patanchon, L. Patrizii, O. Perdereau, L. Perotto, V. Pettorino, F. Piacentini, S. Plaszczynski, L. Polastri, G. Polenta, J. -L. Puget, J. P. Rachen, B. Racine, M. Reinecke, M. Remazeilles, A. Renzi, G. Rocha, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Ruiz-Granados, L. Salvati, M. Sandri, M. Savelainen, D. Scott, G. Sirri, R. Sunyaev, A. -S. Suur-Uski, J. A. Tauber, M. Tenti, L. Toffolatti, M. Tomasi, M. Tristram, T. Trombetti, J. Valiviita, F. Van Tent, L. Vibert, P. Vielva, F. Villa, N. Vittorio, B. D. Wandelt, R. Watson, I. K. Wehus, M. White, A. Zacchei, A. Zonca

This paper describes the identification, modelling, and removal of previously unexplained systematic effects in the polarization data of the Planck High Frequency Instrument (HFI) on large angular scales, including new mapmaking and calibration procedures, new and more complete end-to-end simulations, and a set of robust internal consistency checks on the resulting maps. These maps, at 100, 143, 217, and 353 GHz, are early versions of those that will be released in final form later in 2016. The improvements allow us to determine the cosmic reionization optical depth $\tau$ using, for the first time, the low-multipole $EE$ data from HFI, reducing significantly the central value and uncertainty, and hence the upper limit. Read More

Embedded sensing systems are pervasively used in life- and security-critical systems such as those found in airplanes, automobiles, and healthcare. Traditional security mechanisms for these sensors focus on data encryption and other post-processing techniques, but the sensors themselves often remain vulnerable to attacks in the physical/analog domain. If an adversary manipulates a physical/analog signal prior to digitization, no amount of digital security mechanisms after the fact can help. Read More

(Abridged) We present the first public release of high-quality data products (DR1) from Hi-GAL, the {\em Herschel} infrared Galactic Plane Survey. Hi-GAL is the keystone of a suite of continuum Galactic Plane surveys from the near-IR to the radio, and covers five wavebands at 70, 160, 250, 350 and 500 micron, encompassing the peak of the spectral energy distribution of cold dust for 8 < T < 50K. This first Hi-GAL data release covers the inner Milky Way in the longitude range 68{\deg} > l > -70{\deg} in a |b|<1{\deg} latitude strip. Read More

We consider the classical problem of estimating the attitude and gyro biases of a rigid body from vector measurements and a triaxial rate gyro. We propose a simple "geometry-free" nonlinear observer with guaranteed uniform global asymptotic convergence and local exponential convergence; the stability analysis, which relies on a strict Lyapunov function, is rather simple. The excellent behavior of the observer is illustrated through a detailed numerical simulation. Read More

For a ground-based radio interferometer observing at low frequencies, the ionosphere causes propagation delays and refraction of cosmic radio waves which result in phase errors in the received signal. These phase errors can be corrected using a calibration method that assumes a two-dimensional phase screen at a fixed altitude above the surface of the Earth, known as the thin-layer model. Here we investigate the validity of the thin-layer model and provide a simple equation with which users can check when this approximation can be applied to observations for varying time of day, zenith angle, interferometer latitude, baseline length, ionospheric electron content and observing frequency. Read More

2016Apr
Authors: Planck Collaboration, N. Aghanim, M. I. R. Alves, D. Arzoumanian, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, K. Benabed, J. -P. Bernard, M. Bersanelli, P. Bielewicz, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, F. Boulanger, A. Bracco, M. Bucher, C. Burigana, E. Calabrese, J. -F. Cardoso, H. C. Chiang, L. P. L. Colombo, C. Combet, B. Comis, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, J. -M. Delouis, E. Di Valentino, C. Dickinson, J. M. Diego, O. Doré, M. Douspis, A. Ducout, X. Dupac, S. Dusini, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, E. Falgarone, Y. Fantaye, K. Ferrière, F. Finelli, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frolov, S. Galeotta, S. Galli, K. Ganga, R. T. Génova-Santos, M. Gerbino, T. Ghosh, J. González-Nuevo, K. M. Górski, S. Gratton, A. Gregorio, A. Gruppuso, J. E. Gudmundsson, V. Guillet, F. K. Hansen, G. Helou, S. Henrot-Versillé, D. Herranz, E. Hivon, Z. Huang, A. H. Jaffe, T. R. Jaffe, W. C. Jones, E. Keihänen, R. Keskitalo, T. S. Kisner, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, G. Lagache, A. Lähteenmäki, J. -M. Lamarre, M. Langer, A. Lasenby, M. Lattanzi, M. Le Jeune, F. Levrier, M. Liguori, P. B. Lilje, M. López-Caniego, P. M. Lubin, J. F. Macías-Pérez, G. Maggio, D. Maino, N. Mandolesi, A. Mangilli, M. Maris, P. G. Martin, E. Martínez-González, S. Matarrese, N. Mauri, J. D. McEwen, A. Melchiorri, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, D. Molinari, A. Moneti, L. Montier, G. Morgante, A. Moss, P. Naselsky, P. Natoli, J. Neveu, H. U. Nørgaard-Nielsen, N. Oppermann, C. A. Oxborrow, L. Pagano, D. Paoletti, B. Partridge, O. Perdereau, L. Perotto, V. Pettorino, F. Piacentini, S. Plaszczynski, G. Polenta, J. P. Rachen, R. Rebolo, M. Reinecke, M. Remazeilles, A. Renzi, I. Ristorcelli, G. Rocha, M. Rossetti, G. Roudier, B. Ruiz-Granados, L. Salvati, M. Sandri, M. Savelainen, D. Scott, C. Sirignano, J. D. Soler, A. -S. Suur-Uski, J. A. Tauber, D. Tavagnacco, M. Tenti, L. Toffolatti, M. Tomasi, M. Tristram, T. Trombetti, J. Valiviita, F. Vansyngel, F. Van Tent, P. Vielva, F. Villa, B. D. Wandelt, I. K. Wehus, A. Zacchei, A. Zonca

We study the statistical properties of interstellar dust polarization at high Galactic latitude, using the Stokes parameter Planck maps at 353 GHz. Our aim is to advance the understanding of the magnetized interstellar medium (ISM), and to provide a model of the polarized dust foreground for cosmic microwave background component-separation procedures. Focusing on the southern Galactic cap, we examine the statistical distributions of the polarization fraction ($p$) and angle ($\psi$) to characterize the ordered and turbulent components of the Galactic magnetic field (GMF) in the solar neighbourhood. Read More

The association of filaments with protostellar objects has made these structures a priority target in star formation studies. The datasets of the Herschel Galactic Cold Cores Key Programme allow for a statistical study of filaments with a wide range of intrinsic and environmental characteristics. Characterisation of this sample can be used to identify key physical parameters and quantify the role of environment in the formation of supercritical filaments. Read More

The Libbrecht--Hall circuit is a well-known, low-noise current driver for narrow-linewidth diode lasers. An important feature of the circuit is a current limit to protect the laser diode. As the current approaches the maximum limit, however, the noise in the laser current increases dramatically. Read More

2016Mar
Authors: Planck Collaboration, R. Adam, P. A. R. Ade, N. Aghanim, M. Ashdown, J. Aumont, C. Baccigalupi, R. B. Barreiro, N. Bartolo, E. Battaner, K. Benabed, A. Benoit-Lévy, M. Bersanelli, P. Bielewicz, I. Bikmaev, A. Bonaldi, J. R. Bond, J. Borrill, F. R. Bouchet, R. Burenin, C. Burigana, E. Calabrese, J. -F. Cardoso, A. Catalano, H. C. Chiang, P. R. Christensen, E. Churazov, L. P. L. Colombo, C. Combet, B. Comis, F. Couchot, B. P. Crill, A. Curto, F. Cuttaia, L. Danese, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, F. -X. Désert, J. M. Diego, H. Dole, O. Doré, M. Douspis, A. Ducout, X. Dupac, F. Elsner, T. A. Enßlin, F. Finelli, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, S. Galeotta, K. Ganga, R. T. Génova-Santos, M. Giard, Y. Giraud-Héraud, E. Gjerløw, J. González-Nuevo, A. Gregorio, A. Gruppuso, J. E. Gudmundsson, F. K. Hansen, D. L. Harrison, C. Hernández-Monteagudo, D. Herranz, S. R. Hildebrandt, E. Hivon, M. Hobson, A. Hornstrup, W. Hovest, G. Hurier, A. H. Jaffe, T. R. Jaffe, W. C. Jones, E. Keihänen, R. Keskitalo, I. Khamitov, T. S. Kisner, R. Kneissl, J. Knoche, M. Kunz, H. Kurki-Suonio, G. Lagache, A. Lähteenmäki, J. -M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, R. Leonardi, F. Levrier, M. Liguori, P. B. Lilje, M. Linden-Vørnle, M. López-Caniego, J. F. Macías-Pérez, B. Maffei, G. Maggio, N. Mandolesi, A. Mangilli, M. Maris, P. G. Martin, E. Martínez-González, S. Masi, S. Matarrese, A. Melchiorri, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, P. Natoli, H. U. Nørgaard-Nielsen, D. Novikov, I. Novikov, C. A. Oxborrow, L. Pagano, F. Pajot, D. Paoletti, F. Pasian, O. Perdereau, L. Perotto, V. Pettorino, F. Piacentini, M. Piat, S. Plaszczynski, E. Pointecouteau, G. Polenta, N. Ponthieu, G. W. Pratt, S. Prunet, J. -L. Puget, J. P. Rachen, R. Rebolo, M. Reinecke, M. Remazeilles, C. Renault, A. Renzi, I. Ristorcelli, G. Rocha, C. Rosset, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Rusholme, D. Santos, M. Savelainen, G. Savini, D. Scott, V. Stolyarov, R. Stompor, R. Sudiwala, R. Sunyaev, D. Sutton, A. -S. Suur-Uski, J. -F. Sygnet, J. A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, M. Tucci, L. Valenziano, J. Valiviita, F. Van Tent, P. Vielva, F. Villa, L. A. Wade, I. K. Wehus, D. Yvon, A. Zacchei, A. Zonca

Although infrared (IR) overall dust emission from clusters of galaxies has been statistically detected using data from the Infrared Astronomical Satellite (IRAS), it has not been possible to sample the spectral energy distribution (SED) of this emission over its peak, and thus to break the degeneracy between dust temperature and mass. By complementing the IRAS spectral coverage with Planck satellite data from 100 to 857 GHz, we provide new constraints on the IR spectrum of thermal dust emission in clusters of galaxies. We achieve this by using a stacking approach for a sample of several hundred objects from the Planck cluster sample; this procedure averages out fluctuations from the IR sky, allowing us to reach a significant detection of the faint cluster contribution. Read More

In this paper we study the existence and regularity of stable manifolds associated to fixed points of parabolic type in the differentiable and analytic cases, using the parametrization method. The parametrization method relies on a suitable approximate solution of a functional equation. In the case of parabolic points, if the manifolds have dimension two or higher, in general this approximation cannot be obtained in the ring of polynomials but as a sum of homogeneous functions and it is given in~\cite{BFM2015b}. Read More

We study the computation of local approximations of invariant manifolds of parabolic fixed points and parabolic periodic orbits of periodic vector fields. If the dimension of these manifolds is two or greater, in general, it is not possible to obtain polynomial approximations. Here we develop an algorithm to obtain them as sums of homogeneous functions by solving suitable cohomological equations. Read More

The Small Magellanic Cloud (SMC) is the second-largest satellite galaxy of the Milky Way and is only 60 kpc away. As a nearby, massive, and dense object with relatively low astrophysical backgrounds, it is a natural target for dark matter indirect detection searches. In this work, we use six years of Pass 8 data from the Fermi Large Area Telescope to search for gamma-ray signals of dark matter annihilation in the SMC. Read More

2016Feb
Authors: F. Acero, M. Ackermann, M. Ajello, A. Albert, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, R. Bellazzini, E. Bissaldi, E. D. Bloom, R. Bonino, E. Bottacini, T. J. Brandt, J. Bregeon, P. Bruel, R. Buehler, S. Buson, G. A. Caliandro, R. A. Cameron, M. Caragiulo, P. A. Caraveo, J. M. Casandjian, E. Cavazzuti, C. Cecchi, E. Charles, A. Chekhtman, J. Chiang, G. Chiaro, S. Ciprini, R. Claus, J. Cohen-Tanugi, J. Conrad, A. Cuoco, S. Cutini, F. D'Ammando, A. de Angelis, F. de Palma, R. Desiante, S. W. Digel, L. Di Venere, P. S. Drell, C. Favuzzi, S. J. Fegan, E. C. Ferrara, W. B. Focke, A. Franckowiak, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Giglietto, F. Giordano, M. Giroletti, T. Glanzman, G. Godfrey, I. A. Grenier, S. Guiriec, D. Hadasch, A. K. Harding, K. Hayashi, E. Hays, J. W. Hewitt, A. B. Hill, D. Horan, X. Hou, T. Jogler, G. Jóhannesson, T. Kamae, M. Kuss, D. Landriu, S. Larsson, L. Latronico, J. Li, L. Li, F. Longo, F. Loparco, M. N. Lovellette, P. Lubrano, S. Maldera, D. Malyshev, A. Manfreda, P. Martin, M. Mayer, M. N. Mazziotta, J. E. McEnery, P. F. Michelson, N. Mirabal, T. Mizuno, M. E. Monzani, A. Morselli, E. Nuss, T. Ohsugi, N. Omodei, M. Orienti, E. Orlando, J. F. Ormes, D. Paneque, M. Pesce-Rollins, F. Piron, G. Pivato, S. Rainò, R. Rando, M. Razzano, S. Razzaque, A. Reimer, O. Reimer, Q. Remy, N. Renault, M. Sánchez-Conde, M. Schaal, A. Schulz, C. Sgrò, E. J. Siskind, F. Spada, G. Spandre, P. Spinelli, A. W. Strong, D. J. Suson, H. Tajima, H. Takahashi, J. B. Thayer, D. J. Thompson, L. Tibaldo, M. Tinivella, D. F. Torres, G. Tosti, E. Troja, G. Vianello, M. Werner, K. S. Wood, M. Wood, G. Zaharijas, S. Zimmer

Most of the celestial gamma rays detected by the Large Area Telescope (LAT) aboard the Fermi Gamma-ray Space Telescope originate from the interstellar medium when energetic cosmic rays interact with interstellar nucleons and photons. Conventional point and extended source studies rely on the modeling of this diffuse emission for accurate characterization. We describe here the development of the Galactic Interstellar Emission Model (GIEM) that is the standard adopted by the LAT Collaboration and is publicly available. Read More

The Draco nebula is a high Galactic latitude interstellar cloud likely to have been formed by the collision of a Galactic halo cloud entering the disk of the Milky Way. Such conditions are ideal to study the formation of cold and dense gas in colliding flows of warm gas. We present Herschel-SPIRE observations that reveal the fragmented structure of the interface between the infalling cloud and the Galactic layer. Read More

Observations of Galactic H I gas for seven targeted regions at intermediate Galactic latitude are presented at 1' angular resolution using data from the DRAO Synthesis Telescope (ST) and the Green Bank Telescope (GBT). The DHIGLS data are the most extensive arcminute resolution measurements of the diffuse atomic interstellar medium beyond those in the Galactic plane. The acquisition, reduction, calibration, and mosaicking of the DRAO ST data and the cross calibration and incorporation of the short-spacing information from the GBT are described. Read More