NOAO >   Observing Info >   Approved Programs >   2013A-0130

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Proposal Information for 2013A-0130


PI: Suvi Gezari, University of Maryland, suvi@astro.umd.edu
Address: Astronomy Department, Stadium Dr., CSS Building, Rm. 1204, College Park, MD 20742-2421, USA

CoI: Martin Elvis, Harvard-Smithsonian Center for Astrophysics
CoI: Andrew Lawrence, Royal Observatory of Edinburgh
CoI: Martin Ward, Durham University

Title: Transient Spectroscopic Signatures of Tidal Disruption Events

Abstract: Theorists first surmised that massive black holes (MBHs) will inevitably tidally disrupt and consume stars in their vicinity, and that the resulting flare of radiation could be used as a signpost for a dormant MBH lurking otherwise undetectable in the center of a galaxy.  In the last decade, major progress has been made in the discovery of candidates using surveys across the electromagnetic spectrum, from the X- rays to the optical.  This Gemini-N TOO program builds upon the two recent paradigm shifts in the observational hunt for tidal disruption events (TDEs): the successful detection of the low-energy tail of hot emission from TDEs with optical surveys, and 2) the first detection of transient broad emission lines from the photoionized tidal debris in a TDE. We propose for TOO spectroscopy with GMOS-N of TDE candidates from the Pan-STARRS1 Medium Deep Survey in order to catch their transient emission-line signatures.


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NOAO >   Observing Info >   Approved Programs >   2013A-0130

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