GW190521 and alike: what can we learn from multi-band observations

Stas Babak (APC), 11am on zoom

In this talk I introduce GW event GW190521 and describe its properties. 
Then I will assume its association with the optical flare observed by the Zwicky Transient 
Facility in an Active Galactic Nucleus (AGN). After giving some plausible explanation of this association, 
I will move to possibility observing GW190521-like event(s) with LISA. LISA should detect few tens 
of stellar-mass black hole binaries few years before the 3rd generation of ground-based GW 
interferometers observes their merger. Assuming that some of these binaries are embedded in 
gaseous circum-nuclear disk in AGN, we will discuss potentially detectable features in GW signal due to 
interaction of binary with the gas and with a massive black hole in the galactic centre.  

zoom link >>>


Vendredi, 13 novembre, 2020 - 11:00 to 12:00

Localisation / Location: 


Salle / Local: 

  • Colloquium APC

Nom/Prénom // Last name/First name: 

Stas Babak



Equipe(s) organisatrice(s) / Organizing team(s): 

  • APC colloquium

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