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arXiv · astro-ph/0301147

Galactic Gamma-Ray Halo of the Nearby Starburst Galaxy NGC 253

C. Itoh·R. Enomoto·S. Yanagita·T. Yoshida·T. G. Tsuru
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Abstract

Recently, the CANGAROO-II telescope detected diffuse TeV gamma-ray emission from a nearby edge-on starburst galaxy, NGC 253. The emission mechanism is discussed in this report. We review the emissions of radio-to-TeV gamma-rays from NGC 253, and present a model of the non-thermal emissions due to synchrotron radiations and inverse Compton scatterings. A halo model successfully explains the multiband spectrum of NGC 253.

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C. Itoh, R. Enomoto, S. Yanagita, T. Yoshida, T. G. Tsuru. 2003-01-09. Galactic Gamma-Ray Halo of the Nearby Starburst Galaxy NGC 253. https://doi.org/10.1086/368405

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