False colour image of XMMU J2235.3-2557

False colour image of the XMMU J2235.3-2557 cluster of galaxies, overlaid with the X-ray intensity contours derived from the ESA XMM-Newton data. The red channel is a VLT-ISAAC image (exposure time: 1 hour) obtained in the near-infrared Ks-band (at wavelength 2.2 microns); the green channel is a VLT-FORS2 z-band image (910 nm; 480 sec); the blue channel is a VLT-FORS2 R-band image (; 657 nm; 1140 sec). The VLT reveals 12 reddish galaxies, of elliptical types, as members of the cluster.

Kilde:

ESO

Om bildet

ID:eso0506b
Type:Observasjon
Publiseringsdato:2. mars 2005
Relaterte pressemeldinger:eso0506
Størrelse:1816 x 1338 px

Om objektet

Navn:XMMU J2235.3-2557
Type:Early Universe : Galaxy : Grouping : Cluster
Avstand:z=1.39 (rødforskyvning)
Kategori:Galaxy Clusters

Bildeformater

Stor JPEG
635,9 KB
Medium JPEG
241,9 KB

Farger og filtre

BåndBølgelengdeTeleskop
Optisk
R
657 nmVery Large Telescope
FORS2
Infrarødt
Z
910 nmVery Large Telescope
FORS2
Infrarødt
K
2.2 μmVery Large Telescope
ISAAC

 

Se også