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.

Credit:

ESO

About the Image

Id:eso0221e
Type:Observation
Release date:7 August 2002
Related releases:eso0221
Size:723 x 955 px

About the Object

Name:CL0053-37
Type:• Early Universe : Galaxy : Grouping : Cluster
• Early Universe : Cosmology : Phenomenon : Dark Matter
• X - Galaxy Clusters
Distance:z=0.162 (redshift)

Image Formats

Fullsize Original
417.8 KB
Large JPEG
233.1 KB
Screensize JPEG
289.7 KB

Wallpapers

1024x768
228.0 KB
1280x1024
309.9 KB
1600x1200
381.5 KB
1920x1200
364.2 KB
2048x1536
504.6 KB

Colours & filters

BandTelescope
OpticalMPG/ESO 2.2-metre telescope
WFI

Notes: .

 

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