Eugenio Bottacini - MPE

Eugenio Bottacini
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Eugenio Bottacini

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High Energy Astrophysical Phenomena (7)
Astrophysics (2)
Cosmology and Nongalactic Astrophysics (2)
Instrumentation and Methods for Astrophysics (1)
Astrophysics of Galaxies (1)

Publications Authored By Eugenio Bottacini

Blazars radiate from radio through gamma-ray frequencies thereby being ideal targets for multifrequency studies. Such studies allow constraining the properties of the emitting jet. 3C 279 is among the most notable blazars and therefore subject to extensive multifrequency campaigns. Read More

All-sky explorations by Fermi-LAT have revolutionized our view of the gamma-ray sky. While its ongoing all-sky survey counts thousands of sources, essential issues related to the nature of unassociated sources call for sensitive all-sky surveys at hard X-ray energies that allow for their identification. We present the results of the association of the Fermi-LAT second source catalog to hard X-ray detected sources. Read More

Authors: Fabio Acero, Markus Ackermann, Marco Ajello, Luca Baldini, Jean Ballet, Guido Barbiellini, Denis Bastieri, Ronaldo Bellazzini, E. Bissaldi, Roger Blandford, E. D. Bloom, Raffaella Bonino, Eugenio Bottacini, J. Bregeon, Philippe Bruel, Rolf Buehler, S. Buson, G. A. Caliandro, Rob A. Cameron, R Caputo, Micaela Caragiulo, Patrizia A. Caraveo, Jean Marc Casandjian, Elisabetta Cavazzuti, Claudia Cecchi, A. Chekhtman, J. Chiang, G. Chiaro, Stefano Ciprini, R. Claus, J. M. Cohen, Johann Cohen-Tanugi, L. R. Cominsky, B. Condon, Jan Conrad, S. Cutini, F. D'Ammando, A. Angelis, F. Palma, Rachele Desiante, S. W. Digel, L. Venere, Persis S Drell, Alex Drlica-Wagner, C. Favuzzi, E. C. Ferrara, Anna Franckowiak, Prof. Yasushi Fukazawa, Prof. Stefan Funk, P. Fusco, Fabio Gargano, Dario Gasparrini, Nicola Giglietto, Paolo Giommi, Francesco Giordano, Marcello Giroletti, Tom Glanzman, Gary Godfrey, G A. Gomez-Vargas, I. A. Grenier, M. -H. Grondin, L. Guillemot, Sylvain Guiriec, M Gustafsson, D. Hadasch, A. K. Harding, M. Hayashida, Elizabeth Hays, J. W. Hewitt, A. B. Hill, Deirdre Horan, X. Hou, Giulia Iafrate, Tobias Jogler, G. J'ohannesson, Anthony S. Johnson, T. Kamae, Hideaki Katagiri, Prof. Jun Kataoka, Junichiro Katsuta, Matthew Kerr, J. Knodlseder, Prof. Dale Kocevski, M. Kuss, Helene Laffon, J. Lande, S. Larsson, Luca Latronico, Marianne Lemoine-Goumard, J. Li, L. Li, Francesco Longo, Francesco Loparco, Michael N. Lovellette, Pasquale Lubrano, J. Magill, S. Maldera, Martino Marelli, Michael Mayer, M. N. Mazziotta, Peter F. Michelson, Warit Mitthumsiri, Tsunefumi Mizuno, Alexander A. Moiseev, Maria Elena Monzani, E. Moretti, Aldo Morselli, Igor V. Moskalenko, Prof. Simona Murgia, Prof. Rodrigo Nemmen, Eric Nuss, Takashi Ohsugi, Nicola Omodei, Monica Orienti, Elena Orlando, Jonathan F. Ormes, David Paneque, J. S. Perkins, Melissa Pesce-Rollins, Prof. Vahe' Petrosian, Frederic Piron, Giovanna Pivato, Troy Porter, S. Rain`o, Riccardo Rando, Massimiliano Razzano, Soebur Razzaque, Anita Reimer, Prof. Olaf Reimer, Matthieu Renaud, Thierry Reposeur, Mr. Romain Rousseau, P. M. Parkinson, J. Schmid, A. Schulz, C. Sgr`o, Eric J Siskind, Francesca Spada, Gloria Spandre, Paolo Spinelli, Andrew W. Strong, Daniel Suson, Hiro Tajima, Hiromitsu Takahashi, T. Tanaka, Jana B. Thayer, D. J. Thompson, L. Tibaldo, Omar Tibolla, Prof. Diego F. Torres, Gino Tosti, Eleonora Troja, Yasunobu Uchiyama, G. Vianello, B. Wells, Kent Wood, M. Wood, Manal Yassine, Stephan Zimmer

To uniformly determine the properties of supernova remnants (SNRs) at high energies, we have developed the first systematic survey at energies from 1 to 100 GeV using data from the Fermi Large Area Telescope. Based on the spatial overlap of sources detected at GeV energies with SNRs known from radio surveys, we classify 30 sources as likely GeV SNRs. We also report 14 marginal associations and 245 flux upper limits. Read More

A prominent outburst of the flat spectrum radio quasar 3C~454.3 was observed in 2014 June with the \emph{Fermi} Large Area Telescope. This outburst was characterized by a three-stage light-curve pattern---plateau, flare and post-flare---that occurred from 2014 May to July, in a similar pattern as observed during the exceptional outburst in 2010 November. Read More

X-ray spectral lines at unforeseen energies are important because they can shed light on the extreme physical conditions of the environment around the supermassive black holes of active galactic nuclei (AGN). Mrk 876 displays such a line at 4.8 keV rest-frame energy. Read More

The super-massive black-holes in the centers of Active Galactic Nuclei (AGNs) are surrounded by obscuring matter that can block the nuclear radiation. Depending on the amount of blocked radiation, the flux from the AGN can be too faint to be detected by currently flying hard X-ray (above 15 keV) missions. At these energies only ~1% of the intensity of the Cosmic X-ray Background (CXB) can be resolved into point-like sources that are AGNs. Read More

Current surveys of Active Galactic Nuclei (AGN) find only a very small fraction of AGN contributing to the Cosmic X-ray Background (CXB) at energies above 15 keV. Roughly 99% of the CXB is so far unresolved. In this work we address the question of the unresolved component of the CXB with the combined surveys of INTEGRAL and Swift. Read More

The black hole candidate XTE J1817-330 was discovered in outburst on 26 January 2006 with RXTE/ASM. One year later, on 28 February 2007, another X-ray transient discovered in 1996, XTE J1856+053, was detected by RXTE during a new outburst. We report on the spectra obtained by XMM-Newton of these two black hole candidates. Read More

The galactic black hole candidate XTE J1817-330 was discovered in outburst by RXTE in January 2006. We present here the results of an XMM-Newton Target of opportunity observation (TOO), performed on 13 March 2006 (44 days after the maximum), and an INTEGRAL observation performed on 15-18 February 2006 (18 days after the maximum). The EPIC-pn camera on-board XMM-Newton was used in the fast read-out Burst mode to avoid photon pile-up, while the RGSs were used in Spectroscopy high count-rate mode. Read More