Since the first direct detection of gravitational waves (GWs) in 2015, GW astronomy has played a crucial role in expanding the boundaries of science. The detection of GWs from close to a hundred binary mergers has informed us about the population of these objects, the astrophysical processes they undergo, the accuracy of general relativity in strong-gravity regimes, and the rate of the expansion of the universe by measurement of cosmological parameters. Specifically, inferring cosmological parameters like the Hubble constant (H0) from GWs is particularly important in light of the existent tension in the value of H0 obtained from the early and local universe measurements. One particular technique for H0 measurement utilizes the information from GW detection to get the distance to the source and also identify the host galaxy to obtain the associated redshift. This is called the golden dark siren method and can provide the first measurement of H0 that is precise enough to resolve the Hubble tension. I will present the prospects of measuring H0 using the golden dark siren technique in the coming years and the systematics that influence such measurements.
Zoom link: https://icts-res-in.zoom.us/j/82653627327?pwd=ZFFoaWJtR01vVGxzNGtOMnZKNVc3Zz09
Meeting ID: 826 5362 7327
Passcode: 101003