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.
Kredit:ESO
O snímku
Id: | eso0221e |
Typ: | Pozorování |
Datum zveřejnění: | 7. srpna 2002 |
Související články: | eso0221 |
Velikost: | 723 x 955 px |
O objektu
Jméno: | CL0053-37 |
Typ: | Early Universe : Cosmology : Phenomenon : Dark Matter Early Universe : Galaxy : Grouping : Cluster |
Vzdálenost: | z=0.162 (rudý posuv) |
Kategorie: | Galaxy Clusters |