PIRSA:21050012

Black hole assembly lines in AGN disks

Bartos, I. (2021). Black hole assembly lines in AGN disks . Perimeter Institute. https://pirsa.org/21050012

Bartos, Imre. Black hole assembly lines in AGN disks . Perimeter Institute, May. 13, 2021, https://pirsa.org/21050012 

          @misc{ pirsa_PIRSA:21050012,
            doi = {10.48660/21050012},
            url = {https://pirsa.org/21050012},
            author = {Bartos, Imre},
            keywords = {Strong Gravity},
            language = {en},
            title = {Black hole assembly lines in AGN disks },
            publisher = {Perimeter Institute},
            year = {2021},
            month = {may},
            note = {PIRSA:21050012 see, \url{https://pirsa.org}}
          }

Imre Bartos

University of Florida

Talk number
PIRSA:21050012
Collection
Talk Type
Subject
Abstract

Since their first discovery in 2015, gravitational-wave observations yielded several "surprises." The LIGO and Virgo observatories detected more and heavier black holes than anticipated; the first object in the lower mass gap was found; and LIGO announced the discovery of a particularly heavy black hole that could have not come from stellar core collapse. The surprises point to the possibility that some of LIGO/Virgo's black hole mergers occurred in the dense accretion disks of active galactic nuclei (AGNs). AGNs act like black hole assembly lines, resulting in multiple consecutive mergers that create heavier and faster-spinning black holes. I will discuss what we currently know about AGN-assisted mergers and which of LIGO/Virgo's events are suspects. I will finally discuss the prospects of multi-messenger observations from AGN assisted mergers.

Zoom Link: https://pitp.zoom.us/j/93121526365?pwd=c1VCTjBEZnlXYk5HVTFObVBadHlxQT09