3 papers
astro-ph.HE2025
A White Paper on The Multi-Messenger Science Landscape in India
Samsuzzaman Afroz, Sanjib Kumar Agarwalla, Dipankar Bhattacharya +35
The multi-messenger science using different observational windows to the Universe such as Gravitational Waves (GWs), Electromagnetic Waves (EMs), Cosmic Rays (CRs), and Neutrinos o…
gr-qc2025
Gravitational wave memory and geodesic congruence response in generalised Ellis-Bronnikov wormholes
Soumya Bhattacharya, Suman Ghosh
We investigate gravitational wave memory in generalised Ellis-Bronnikov wormhole spacetimes by studying the response of neighbouring timelike geodesics and geodesic congruences to…
gr-qc2023
Gravitational memory signal from neutrino self-interactions in supernova
Soumya Bhattacharya, Debanjan Bose, Indranil Chakraborty +2
Neutrinos with large self-interactions, arising from exchange of light scalars or vectors with mass , can play a useful role in cosmology for structure forma…