Effects of cosmic rays’ self-modulation on the galactic diffuse gamma-ray emission

D. O. Chernyshov; Чернышов Д. О.; A. V. Ivlev; Ивлев А. В.; E. A. Kulik; Кулик Е. А.

doi:10.31857/S036767652370165X

Effects of cosmic rays’ self-modulation on the galactic diffuse gamma-ray emission

Authors: Chernyshov D.O.¹, Ivlev A.V.², Kulik E.A.¹
Affiliations:
1. Lebedev Physical Institute of the Russian Academy of Sciences, Tamm Theoretical Physics Division
2. Max-Planck-Institut fur Extraterrestrische Physik
Issue: Vol 87, No 7 (2023)
Pages: 947-950
Section: Articles
URL: https://journal-vniispk.ru/0367-6765/article/view/135425
DOI: https://doi.org/10.31857/S036767652370165X
EDN: https://elibrary.ru/ONQRGE
ID: 135425

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Abstract
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Abstract

We studied how the process of self-modulation of cosmic rays, occurring upon their penetration into dense molecular clouds, affects the total gamma-ray emission of the Galaxy. We estimated how the self-modulation modifies the emission from each individual cloud and integrate the results along the line of sight for a given area in the sky. Our calculations show that the self-modulation reduces the total intensity of gamma-ray emission below 1 GeV by about 10–30%. Even though the magnitude of the effect is not large, it still can substantially affect the background gamma-ray emission at low energies.

References

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