Diffuse Galactic Gamma-rays from star clusters
Biman B. Nath, David Eichler
TL;DR
This paper shows that young star clusters significantly contribute to the diffuse Galactic gamma-ray emission, with their surface brightness comparable to the overall diffuse emission and covering a large portion of the sky.
Contribution
It introduces the idea that young star clusters are a major component of the diffuse Galactic gamma-ray emission, which was not previously quantified.
Findings
Star clusters have gamma-ray brightness comparable to diffuse emission.
Their sky coverage in the inner Galaxy exceeds unity.
Star clusters are a significant fraction of the diffuse Galactic gamma-ray emission.
Abstract
We demonstrate that young star clusters have a -ray surface brightness comparable to that of the diffuse Galactic emission (DGE), and estimate that their sky coverage in the direction of the inner Galaxy exceeds unity. We therefore suggest that they comprise a significant fraction of the DGE.
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