Spectral features of tidal-disruption candidates and alternative origins for such transient flares

UV and optically selected candidates for stellar tidal disruption events (TDE) often exhibit broad spectral features (HeII emission, H$\alpha$ emission, or absorption lines) on a blackbody-like continuum (1e4K

Comments: 16 pages, 6 figures, MNRAS submitted

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2017May
Affiliations: 1Liverpool John Moores Univ., UK, 2German Aerospace Center, Oberpfaffenhofen, Germany, 3INAF IASF Bologna Italy, 4National Astronomical Observatories CAS, Beijing, China, 5Liverpool John Moores Univ., UK, 6Smithsonian Astrophysical Observatory, Cambridge, MA, USA, 7MPA, Garching, Germany, 8Kavli IPMU, Kashiwa, Japan

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