Constraints on the Number of Primordial Black Holes Due to Interaction with Dust
A. N. Melikhov (Astro Space Center, P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia), E. V. Mikheeva (Astro Space Center, P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia)
TL;DR
This paper investigates how photons from primordial black holes influence interstellar dust heating, deriving constraints on the abundance of PBHs within a specific mass range based on dust temperature data.
Contribution
It introduces new constraints on primordial black hole abundance by analyzing their impact on interstellar dust heating using observational dust temperature data.
Findings
Constraints on PBH fraction for masses between 10^{15} and 10^{17} grams.
PBH photon emission significantly affects interstellar dust temperature.
Limits on PBH contribution to dark matter within the studied mass range.
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 ~g.
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