| Abstract: |
The discovery of gravitational waves (GW) from coalescences of compact binaries has kickstarted the field of multi-messenger (MM) astronomy which allows studies of the same sources from across different domains such as electromagnetic (EM) and GWs. Strong gravitational lensing, causing multiple signals of the same distant source due to a massive intervening object, is useful for cosmology and astrophysics. Strongly lensed GW sources with EM counterparts will present us with unprecedented opportunities to improve our search efficiency as well as give insights into the source physics and improvements in cosmological constraints. In my talk, I will present work on early warning of lensed MM sources, their feasibility and detectability studies using ongoing and upcoming observatories including LIGO (GW) and Rubin LSST (optical).
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