X-ray and optical view of the Perseus galaxy cluster

X-ray and optical view of the Perseus galaxy cluster
Image:

This image shows the Perseus galaxy cluster – one of the most massive known objects in the Universe – in X-ray and optical light, as seen by XMM-Newton ’s European Photon Imaging Camera (EPIC) and the Digitzed Sky Survey II, respectively.

Using XMM-Newton to study Perseus, astronomers spotted the first signs of this hot gas splashing and sloshing around – a behaviour that, while predicted, had never been seen before.

Full story: First sighting of hot gas sloshing in galaxy cluster

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