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'Real colour' representation of the sources detected by XMM-Newton in the Lockman Hole region.

'Real colour' representation of the sources detected by XMM-Newton in the Lockman Hole region.


Copyright: ESA

The red, green and blue coding refers respectively to the 0.5-2, 2-4.5 and 4.5-10 keV bands. Several diffuse sources with red colours are X-ray clusters of galaxies already identified by ROSAT data. But XMM-Newton clearly identifies a number of green and blue objects, corresponding to obscured faint sources.
Last Update: 1 September 2019
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20-Apr-2024 07:17 UT

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