Analysis of primordial black holes in dark matter reveals constraints from interstellar dust heating by Hawking radiation.
Within an inflationary model featuring a massive inflaton whose potential has a bump at a certain scale, the spectrum of density perturbations and the mass spectrum of primordial black holes are derived. Additionally, constraints on the fraction of primordial black holes in dark matter are obtained, resulting from the heating of interstellar dust by Hawking radiation photons.
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A. N. Melikhov (2025) studied this question.
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