Date: 29 January 2000 Satellite: XMM-Newton Depicts: Composite image of OM-V filter (left) and UVW1 filter (right) of HCG16 Copyright: ESA Show in archive: false
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.