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astro-ph.CO2025
Anisotropic Neutrino Emission from Spinning, Moving, and Charged Primordial Black Holes
Arnab Chaudhuri
The angular and spectral features of neutrinos emitted from primordial black holes (PBHs) carry key imprints of the black hole's fundamental properties. This work investigates the…
astro-ph.CO2025
Directional Neutrino Bursts from Spinning and Moving Primordial Black Holes
Arnab Chaudhuri, Priya Mishra, Rukmani Mohanta
We show that primordial black holes (PBHs) with significant spin and bulk motion produce sharply collimated neutrino bursts from Hawking evaporation, arising from the interplay of…
astro-ph.CO2025
New bounds on Memory Burdened Primordial Black Holes from Big Bang Nucleosynthesis
Arnab Chaudhuri, Kazunori Kohri, Valentin Thoss
Primordial black holes (PBHs) with masses below are typically assumed to have negligible cosmological impact due to their rapid evaporation via Hawking radiation. Ho…