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.

Crediti:

ESO

A proposito dell'immagine

Identificazione:eso0221e
Tipo:Osservazione
Data di pubblicazione:07 Agosto 2002
Notizie relative:eso0221
Dimensione:723 x 955 px

A proposito delll'oggetto

Nome:CL0053-37
Tipo:Early Universe : Cosmology : Phenomenon : Dark Matter
Early Universe : Galaxy : Grouping : Cluster
Distanza:z=0.162 (redshift (spostamento verso il rosso))
Categoria:Galaxy Clusters

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Colori e filtri

BandaTelescopio
OtticoMPG/ESO 2.2-metre telescope
WFI

Note: .