Orateur
Christopher Messenger
(University of Glasgow)
Description
The observation of gravitational waves (GWs) from binary neutron star mergers coincident with short gamma-ray bursts (sGRBs) is a likely scenario for the Advanced detector era. Such observations will allow us to enhance the determination of parameters governing the signals of both emission channels. When a population of such observations are accumulated it is possible to also infer parameters
governing that population. We present a general hierarchical Bayesian procedure for this purpose and provide an example analysis whereby the gamma-ray luminosity distribution of sGRBs can be measured. When modelling the sGRB luminosity distribution as a power-law we are able show that after O(10) joint detections we will be able to constrain the sGRB power-law index to +/- 0.2 and after O(100) to +/- 0.05 at 95% confidence. For the latter result the required number of joint observations requires a 3rd generation GW detector network. For the former it is feasible that the Advanced network at design sensitivity will provide enough jointly observed events.
Auteur principal
Christopher Messenger
(University of Glasgow)
