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.

Herkunftsnachweis:

ESO

Über das Bild

ID:eso0221e
Typ:Beobachtung
Veröffentlichungsdatum:7. August 2002
Dazugehörige Veröffentlichungen:eso0221
Größe:723 x 955 px

Über das Objekt

Name:CL0053-37
Typ:Early Universe : Cosmology : Phenomenon : Dark Matter
Early Universe : Galaxy : Grouping : Cluster
Entfernung:z=0.162 (Rotverschiebung)
Kategorie:Galaxy Clusters

Bildformate

Großes JPEG
233,1 KB

Bildschirm-Hintergrundbilder

1024x768
228,0 KB
1280x1024
309,9 KB
1600x1200
381,5 KB
1920x1200
364,2 KB
2048x1536
504,5 KB

Farben & Filter

SpektralbereichTeleskop
OptischMPG/ESO 2.2-metre telescope
WFI

Endnoten: .