3 papers
astro-ph.CO2025
Extended mass distribution of PBHs during QCD phase transition: SGWB and mini-EMRIs
Nilanjandev Bhaumik, Huai-Ke Guo, Si-Jiang Liu
Primordial black holes (PBHs) are one of the most important tracers of cosmic history. In this work, we investigate the formation of PBHs around the time of the QCD phase transitio…
astro-ph.CO2024
Memory burden effect mimics reheating signatures on SGWB from ultra-low mass PBH domination
Nilanjandev Bhaumik, Md Riajul Haque, Rajeev Kumar Jain +1
Ultra-low mass primordial black holes (PBH), briefly dominating the expansion of the universe, would leave detectable imprints in the secondary stochastic gravitational wave backgr…
astro-ph.CO2019
Primordial black holes dark matter from inflection point models of inflation and the effects of reheating
Nilanjandev Bhaumik, Rajeev Kumar Jain
We study the generation of primordial black holes (PBH) in a single field inflection point model of inflation wherein the effective potential is expanded up to the sextic order and…