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.
Credit:
ESO
About the Image
| Id: | eso0506b |
| Type: | Chart |
| Release date: | 2 March 2005 |
| Related releases: | eso0506 |
| Size: | 1816 x 1338 px |
About the Object
| Name: | XMMU J2235.3-2557 |
| Type: | • Early Universe : Galaxy : Grouping : Cluster • X - Galaxy Clusters |
| Distance: | z=1.39 (redshift) |
Colours & filters
| Band | Wavelength | Telescope |
| Optical R |
657 nm | Very Large Telescope FORS2 |
| Infrared Z |
910 nm | Very Large Telescope FORS2 |
| Infrared K |
2.2 μm | Very Large Telescope ISAAC |
Images
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