Constraints on primordial black holes from interstellar dust temperature in the Galaxy
arXiv:2506.08605 · doi:10.1103/PhysRevD.107.063535
Abstract
The photons emitted by primordial black holes (PBHs) can be a heating factor for interstellar dust. Assuming that dust in the Galaxy has a homogeneous distribution and that PBHs have the same distribution as dark matter (DM), we constrain the fraction of PBHs in DM from the observational dust temperature in the Galaxy.
arXiv comment5 pages, 2 figures; typos in the bibliography are fixed
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