Now you see it, now you don't: the disappearing central engine of the quasar J1011+5442

We report the discovery of a new ‘changing-look' quasar, SDSS J101152.98+544206.4, through repeat spectroscopy from the Time Domain Spectroscopic Survey. This is an addition to a small but growing set of quasars whose blue continua and broad optical emission lines have been observed to decline...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2016-01, Vol.455 (2), p.1691-1701
Main Authors: Runnoe, Jessie C., Cales, Sabrina, Ruan, John J., Eracleous, Michael, Anderson, Scott F., Shen, Yue, Green, Paul J., Morganson, Eric, LaMassa, Stephanie, Greene, Jenny E., Dwelly, Tom, Schneider, Donald P., Merloni, Andrea, Georgakakis, Antonis, Roman-Lopes, A.
Format: Article
Language:English
Subjects:
Black holes
Decay rate
Emission
Engines
Intervals
Light curve
Luminosity
Quasars
Space telescopes
Spectroscopy
Spectrum analysis
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Summary:We report the discovery of a new ‘changing-look' quasar, SDSS J101152.98+544206.4, through repeat spectroscopy from the Time Domain Spectroscopic Survey. This is an addition to a small but growing set of quasars whose blue continua and broad optical emission lines have been observed to decline by a large factor on a time-scale of approximately a decade. The 5100 Å monochromatic continuum luminosity of this quasar drops by a factor of >9.8 in a rest-frame time interval of 
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/stv2385