XMM-Newton OM First Light - HCG 16r
Image and text courtesy of ESA
Composite image of OM-V filter (left) and UVW1 filter (right)
The optical image of the Hickson galaxy group taken with XMM's Optical Monitor instrument is compared with an ultraviolet image taken with the same telescope. Routine access to ultraviolet images of the sky is another first for XMM, allowing us to pick out the hottest sources in the sky, which are most likely to be responsible for the X-ray emission.
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