Constraints on the Number of Primordial Black Holes Due to Interaction with Dust

2025/06/05 by Melikhov, A. N., Mikheeva, E. V.
#Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences

paper · doi:10.48550/arxiv.2506.04731

Abstract

Photons emitted by primordial black holes (PBHs) due to the Hawking effect are among the factors of interstellar dust heating. Based on the data on the temperature of dust, constraints on the fraction of 10¹⁵≤ M≤10¹⁷~g.

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