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astro-ph.CO2025
Dust Attenuation of Lyman-Werner Feedback: Reassessing Early Super Massive Black Holes Seed Formation
Bisweswar Sen
We investigate the impact of dust shielding on Lyman-Werner (LW) radiation fields and its implications for supermassive black hole (SMBH) seed formation at high redshift. Using a c…
astro-ph.CO2025
Gravitational Recoil and Suppression of Super Massive Black Hole Seeds in the Early Universe
Bisweswar Sen
We investigate the impact of gravitational-wave (GW) recoil on the growth of supermassive black holes (SMBHs) in the early Universe. Forming 10^9 Solar Mass SMBHs by z=6 is challen…
astro-ph.CO2025
Unlocking 21cm Cosmology with SBI: A Beginner friendly NRE for Inference of Astrophysical Parameters
Bisweswar Sen
The 21-cm line of neutral hydrogen is a promising probe of the early Universe, yet extracting astrophysical parameters from its power spectrum remains a major challenge. We present…