File:ESO-dark matter distribution in CL0053-37-.jpg
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DescriptionESO-dark matter distribution in CL0053-37-.jpg |
English: A "map" of the dark matter distribution (black contours) in the cluster of galaxies CL0053-37, as obtained from the weak lensing effects detected in the WFI images, and the X-ray flux (green contours) taken from the All-Sky Survey carried out by the ROSAT satellite observatory. The distribution of galaxies resembles the elongated, dark-matter profile. Because of ROSAT's limited image sharpness (low "angular resolution"), it cannot be entirely ruled out that the observed X-ray emission is due to an active nucleus of a galaxy in CL0053-37, or even a foreground stellar binary system in NGC 300. |
Date | |
Source | http://www.eso.org/gallery/v/ESOPIA/Cosmology/phot-18e-02.jpg.html |
Author | ESO |
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http://www.eso.org/public/outreach/press-rel/copyright.html |
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current | 14:28, 10 August 2009 | 723 × 1,024 (415 KB) | Lars Lindberg Christensen (talk | contribs) | {{Information |Description={{en|1=A "map" of the dark matter distribution (black contours) in the cluster of galaxies CL0053-37, as obtained from the weak lensing effects detected in the WFI images, and the X-ray flux (green contours) taken from the All-S |
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