ELFT HÍRADÓ

[Sandor Katz <katz AT bodri.elte.hu>]

Date/Time: 30 November, Wednesday, 14:15
Location: ELTE, Lagymanyos, 2. floor, room 2.54
Speaker: Bence Kocsis (Eotvos)
Title: The dynamical origin of black hole mergers

Abstract:

With the detections of the gravitational waves emitted during black hole 
mergers, LIGO has recently opened the field of gravitational wave astrophysics. 
In this talk I will discuss some of the astrophysical processes that may be 
responsible for the observed events. Although less than 0.5% of the stellar 
mass is in dense stellar systems, I will argue that a large fraction of the 
black hole mergers may originate in these environments due to gravitational 
bremsstrahlung and multibody interactions. Accretion disks in active galactic 
nuclei may also facilitate black hole mergers. Finally, if primordial black 
holes constitute a fraction of dark matter, gravitational waves may shed light 
on its composition. I will discuss predictions on the event rate distribution 
that may be used to disentangle these astrophysical processes to understand the 
origin of the observed gravitational wave events.

More info: http://bodri.elte.hu/#seminar