Statistical Inference of the Hubble constant from Gravitational Waves Data.

by Christos Karathanasis (IFAE)

Wednesday 24 Mar 2021, 13:00 → 14:00 Europe/Madrid

IFAE Virtual Seminar Room (IFAE)

Gravitational waves detectors offer a new way of observing the universe. With the first detection of a gravitational

wave event, the era of multi-messenger astronomy started. In the case of an electromagnetic counterpart, the host

galaxy of the event can be identified and an accurate estimation of the Hubble constant(H0) can be made. This

was the case with the first binary neutron star coalescence (GW170817). However, detecting the counterpart is not

so easy and a statistical approach for the estimation of H0 is necessary. Correlating  the volume in the sky where the

event is most probable to originate with galaxy catalogs, a statistical estimation of H0 can be given.