Galactic Gamma-Ray Halo of the Nearby Starburst Galaxy NGC 253
Open Access
- 20 February 2003
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 584 (2) , L65-L68
- https://doi.org/10.1086/368405
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 nonthermal emissions due to synchrotron radiations and inverse Compton scatterings. A halo model successfully explains the multiband spectrum of NGC 253.Keywords
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