3 papers
gr-qc2026
Determination of the Angular Momentum of Radiated Gravitons, Scalars, and Dark Photons from Binary Orbits
Arpan Hait, Subhendra Mohanty
We compute the energy and angular momentum radiated by compact binaries through gravitational waves, scalar and vector fields, using the field-theoretic approach. We observe that e…
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…
astro-ph.CO2025
Dark matter cooling during early matter-domination boosts sub-earth halos
Avik Banerjee, Debtosh Chowdhury, Arpan Hait +1
The existence of an early matter-dominated epoch prior to the Big Bang Nucleosynthesis may lead to a scenario where the thermal dark matter cools faster than plasma before the radi…