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.

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ESO

Om bilden

ID:eso0506b
Typ:Observation
Publiceringsdatum:2 mars 2005
Relaterade pressmeddelanden:eso0506
Storlek:1816 x 1338 px

Om objektet

Namn:XMMU J2235.3-2557
Typ:Early Universe : Galaxy : Grouping : Cluster
Avstånd:z=1.39 (rödförskjutning)
Kategori:Galaxy Clusters

Bildformat

Stor jpeg
635,9 kB
Skärmstor jpeg
241,9 kB

Färger och filter

BandVåglängdTeleskop
Synligt ljus
R
657 nmVery Large Telescope
FORS2
Infrarött
Z
910 nmVery Large Telescope
FORS2
Infrarött
K
2.2 μmVery Large Telescope
ISAAC

 

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