Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21540409m&link_type=abstract
American Astronomical Society, AAS Meeting #215, #404.09; Bulletin of the American Astronomical Society, Vol. 42, p.226
Astronomy and Astrophysics
Astronomy
Scientific paper
When a passing star is tidally disrupted by a massive black hole, the resultant accretion and outflow are expected to lead to a transient electromagnetic event as bright as AGN and luminous supernovae. While a number of tidal disruption events (TDEs) have been claimed, usually the data are too sparse to unequivocally identify the signature with a TDE. Instead, AGN could mimic some of the expected behavior. The value of long baseline historical light curves -- both before and after the TDE candidate -- prove immensely valuable. Using DeepSky data (http://www.deepskyproject.org) that spans the past five years, we inspect many reported candidate TDEs before, during and after the event. We use various stacking and image differencing techniques to measure photometric changes in the host galaxies on various timescales and to different depths. We discuss our resulting light curves in the context of current TDE models and previously published data.
Bloom Josh S.
Merritt Allison T.
Miller Alexander
Nugent Peter
Poznanski Dovi
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