Dark matter in CL 0053-37

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.

Kilde:

ESO

Om billedet

Id:eso0221e
Type:Observation
Udgivelsesdato:7. august 2002
Relaterede pressemeddelelser:eso0221
Størrelse:723 x 955 px

Om objektet

Navn:CL0053-37
Type:Early Universe : Cosmology : Phenomenon : Dark Matter
Early Universe : Galaxy : Grouping : Cluster
Afstand:z=0.162 (rødforskydning)
Kategori:Galaxy Clusters

Billedformater

Stor JPEG
233,1 KB
Skrærm JPEG
289,6 KB

Baggrundsbilleder

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228,0 KB
1280x1024
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1600x1200
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1920x1200
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2048x1536
504,5 KB

Farver & filtre

BåndTeleskop
OptiskMPG/ESO 2.2-metre telescope
WFI

Noter: .