XMM-Newton view of the core of the Cyg OB2 association
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Image courtesy of Rauw 2011, A&A, in press and ESA.
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About this Image
This combined XMM-Newton observation of the core of the very massive cluster Cyg OB2 reveals strong X-ray emission from the massive O-type stars of this cluster as well as weaker emission from hundreds of lower mass stars that were recently born in the association. The blue, green and red colours correspond to photon energies of 0.5 - 1.0, 1.0 - 2.0 and 2.0 - 8.0 keV, respectively.
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