3 papers
astro-ph.SR2026
Parameterizing the Standing Accretion Shock Instability for Inference with Galactic Supernova Neutrino Signals at IceCube
Dwaipayan Mukherjee, Mohamed Rameez, Basudeb Dasgupta
Simulations of core-collapse supernovae have revealed an epoch of hydrodynamic instability in which the matter of the collapsing star undergoes quasi-periodic oscillations, known a…
hep-ph2026
Sufficient and Necessary Conditions for Collective Neutrino Instability: Fast, Slow, and Mixed
Basudeb Dasgupta, Dwaipayan Mukherjee
Collective neutrino oscillations exhibit instabilities that induce appreciable flavor conversion, with crucial astrophysical implications. While the importance of initial phase-spa…
astro-ph.CO2025
Stronger Constraints on Primordial Black Holes as Dark Matter Derived from the Thermal Evolution of the Intergalactic Medium over the Last Twelve Billion Years
Nabendu Kumar Khan, Anupam Ray, Girish Kulkarni +1
Primordial black holes (PBHs) have been explored as potential dark matter candidates, with various astrophysical observations placing upper limits on the fraction …