Theoretical Physics Seminar
Cosmology using gravitationally lensed gravitational waves
Speaker: Prof. Parameswaran Ajith (ICTS, Bengaluru, India)
Date and time
Webinar link
Venue
SCM Lecture hall
Abstract
A small fraction (~0.1% — 1%) of the gravitational-wave signals detectable by ground-based detectors are expected to undergo strong gravitational lensing by intervening galaxies and clusters. In addition, compact objects with sizes comparable to the GW wavelength can produce micro-lensing effects that can distort the observed signal. I will talk about how the observation (as well as non-observation) of lensed GWs can probe different aspects of cosmology, including primordial black holes, dark matter and cosmic expansion rate.
Join Zoom Meeting
https://us02web.zoom.us/j/85825161074?pwd=huaqnyU2yuXoaJeEa67F1sAgzLjJvT.1
Meeting ID: 858 2516 1074
Passcode: 123456