Supermassive Black Hole Outflows and Pairs

Kayhan Gültekin
University of Michigan
Tuesday, May 19, 2020
2:00 pm
Zoom Seminar
Supermassive black holes, once thought to be theoretical novelties, are now considered to play a major role in many astrophysical phenomena including galaxy evolution. Now that we live in the era of gravitational wave observations, it is interesting to look forward to a time when we can detect gravitational waves from supermassive black hole coalescence. A major question remains: Do supermassive black holes merge?  I will review the case for supermassive black holes as active players in the universe, focusing on the black hole outflows. Then I will concentrate on my group’s recent work searching for dual and binary AGNs along with recent developments: (1) closer inspection of time-domain-identified binary candidates; (2) a Bayesian framework for determining duality in a Chandra observation; and (3) spectroscopic and time-domain identification of low-mass-ratio binary AGN.
If you would like to attend this meeting, please contact Vivian U ( for the Zoom link.
Paul Robertson