Abstract Details
| Name: Kunj Panchal Affiliation: Indian Institute of Technology Hyderabad Conference ID: ASI2025_459 Title : Probing the impact of astrophysical parameters on the properties of lensed gravitational waves Authors and Co-Authors : Kunj Panchal 1, Anupreeta More 2 Abstract Type : Poster Abstract Category : High Energy Phenomena, Fundamental Physics and Astronomy Abstract : Around 100 Gravitational Waves have been detected by current generation GW detectors. With the next generation GW detectors, there are high chances of detecting gravitationally lensed gravitational waves. Lensed gravitational waves, even if rare, provide a good opportunity to study cosmology and astrophysics. In particular, the statistical properties of lensed GWs from compact binary coalescences show a characteristic distribution in their lensed image properties such as the time delays and magnifications. These characteristic lensed image distributions can be used in myriad of ways such as probing Cosmology, gaining insights into astrophysics of merging progenitors or using the distributions as priors in techniques used to search and identify lensed GWs. In this work, we study the impact of variations in the cosmological parameters and astrophysical models on the characteristic statistical distribution of lensed images of GWs. In particular, we study the impact of using different Hubble constant , Binary Black Hole mass distribution, galaxy velocity dispersion function and galaxy mass profiles chosen from different studies in the literature. We find that the tested variations in parameters or models result in time delay distributions that are statistically similar for the LIGO and VIRGO detectors at current (O4) sensitivity. |