Invited talk at Rutgers astronomy seminar

Activity: Talk or presentation typesInvited talk

Description of Activity

Title: Tidal Disruption Events: Hosts, Rates, and Echoes

Abstract: Tidal disruption events are luminous, transient flares that occur when a star strays past the tidal radius of a supermassive black hole (SMBH) and is torn apart by the SMBH's gravitational field. These transients, predicted in the 70s, are now routinely discovered in optical, wide-field surveys. However, they are rare, and only ~100 such objects have been discovered to date. In my talk, I will describe what we know about the host galaxies of these events and how they relate to their formation mechanism. I will then describe how tidal disruption events can be discovered in spectroscopic surveys, such as SDSS and DESI, by searching for high-ionization iron lines. Tidal disruption events are not only interesting as a new type of transient, they are also useful probes of SMBH/AGN physics and evolution. I will show several examples of such uses, including as scanning machines of the gas in the vicinity of SMBHs.
Period11 Apr 2024
Held atDepartment of Physics and Astronomy, United States, New Jersey