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Last updated on April 21, 2014 at 5:21 EDT
Three colour EPIC-MOS image of the central region of M31
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Three colour EPIC-MOS image of the central region of M31

January 24, 2013
Showing the numerous point sources detected by XMM-Newton (fig.1), with an optical view of the Andromeda galaxy. The X-ray colours correspond to the soft, medium and hard energy bands detected with EPIC.