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.

Crédit:

ESO

À propos de l'image

Identification:eso0221e
Type:Observation
Date de publication:7 août 2002
Communiqués de presse en rapport:eso0221
Taille:723 x 955 px

À propos de l'objet

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

Image Formats

Grand JPEG
233,1 Kio
JPEG taille écran
289,6 Kio

Fonds d'écran

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

Couleurs & filtres

DomaineTélescope
VisibleMPG/ESO 2.2-metre telescope
WFI

Notes: .