Entering A New Era of Population Studies of Tidal Disruption Events

Wed 21 Oct 2020

This colloquium is hosted by STScI and will be held as a fully virtual event.


3:00 PM - 4:00 PM

Contact Information:

Have questions? Please contact STScI.


The tidal disruption of a star by a central supermassive black hole originated as a theoretical concept, but is now a routine observational reality. Nuclear transients are being discovered by a rich landscape of optical time domain surveys (in alphabetical order: ASAS-SN, ATLAS, Gaia, PanSTARRS, TESS, ZTF) and are being followed-up with space and ground-based facilities across the electromagnetic spectrum.  I will highlight our recent sample of over 25 systematically selected, uniformly characterized tidal disruption events (TDEs) from the Zwicky Transient Facility (ZTF).  The growing number of TDE discoveries from optical surveys, with hundreds more on the horizon with the start of the Vera Rubin Observatory Legacy Survey of Space and Time, are enabling us to do population studies of TDEs for the first time.  I will present exciting new developments in our understanding of the physical conditions driving the light curves, broadband spectral energy distributions, and spectroscopic sub-classes in TDEs, and how they relate to the properties of their host galaxies and the masses of their central supermassive black holes.

Speaker: Suvi Gezari (University of Maryland, College Park)


All 2020 Fall Colloquium talks are presented virtually on Wednesdays.

Please direct questions or comments to contact above.  The 2020-2021 committee members are:  Karoline Gilbert (STScI co-chair), Ethan Vishniac (JHU co-chair), Graeme Addison (JHU), Martha Boyer (STScI), Joshua Peek (STScI), Kevin Schlaufman (JHU), Raymond Simons (STScI).