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Cosmic ray models of the ridge-like excess of gamma rays in the Galactic Centre

Macias, Oscar; Gordon, Chris; Crocker, Roland; Profumo, Stefano


The High-Energy Stereoscopic System (HESS) has detected diffuse TeV emission correlated with the distribution of molecular gas along the Ridge at the Galactic Centre. Diffuse, nonthermal emission is also seen by the Fermi large area telescope (Fermi-LAT) in the GeV range and by radio telescopes in the GHz range. Additionally, there is a distinct, spherically symmetric excess of gamma rays seen by Fermi-LAT in the GeV range. A cosmic ray flare, occurring in the Galactic Centre, 104 yr ago has...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stv1002
Access Rights: Open Access


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