Comparison of a distant galaxy cluster in X-ray and visible light

Composite of x-ray and visible light views of a distant cluster of galaxies
Visible light view of a distant galaxy cluster discovered in the XXL survey
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This slider comparison image superimposes an X-ray image of a distant cluster (the blue pixellated image, from ESA's XMM-Newton satellite) on top of a ground-based view of the sky (from the Canada France Hawaii Telescope). Some of the brightest X-ray objects are galaxies with brilliant centres powered by supermassive black holes. The cluster at the centre of the picture shows up as an extended patch of X-ray emission, coming from hot gas.

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ESA/XXL survey consortium/Canada France Hawaii Telescope

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Id:eso1548a
Data e Publikimit:Dhj 15, 2015, 12:00 CET
Publikime të ngjashme:eso1548

Fotografitë

Composite of x-ray and visible light views of a distant cluster of galaxies
Composite of x-ray and visible light views of a distant cluster of galaxies
Visible light view of a distant galaxy cluster discovered in the XXL survey
Visible light view of a distant galaxy cluster discovered in the XXL survey