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arXiv · 1110.3905

Search for high-energy gamma-ray emission from galaxies of the Local Group with Fermi/LAT

Jean-Philippe Lenain·Roland Walter
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Abstract

Normal galaxies begin to arise from the shadows at high energies, as can be seen with the discovery of high-energy gamma-ray emission from the Andromeda galaxy (M 31) by the Fermi /LAT collaboration. We present a study on the search for high-energy emission around galaxies of the Local Group. No significant detection is found from the objects studied here. Upper limits on the high-energy emission of nearby normal galaxies are derived, and we discuss them in the context of gamma-ray emission from cosmic ray interactions with the local interstellar medium in these galaxies.

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Jean-Philippe Lenain, Roland Walter. 2011-10-18. Search for high-energy gamma-ray emission from galaxies of the Local Group with Fermi/LAT. https://arxiv.org/abs/1110.3905

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