Very Deep Near IR View of "AXAF Deep Field"

In order to be able to see such obscured and/or "evolved" galaxies in the early Universe, and to look for hitherto unknown galaxies beyond the limits of "deep-field" imaging in visible spectral bands, it is necessary to employ other observing techniques. The astronomers must search for such objects on large-field, very long-exposure sky images obtained in the near-infrared and far IR region of the electromagnetic spectrum. North is up and east is left. The reproduction is "negative", with dark objects on a light sky, in order to better show the faintest objects.

Technical note : This K-band image is the result of 510 min of integration time with ISAAC at VLT ANTU. The 3-sigma magnitude limit is about K = 23.5 per arcsec 2. A J-band image was also obtained during 200 min of integration, with a 3-sigma limit of J = 25 per arcsec 2. The seeing FWHM (Full Width at Half Maximum) is 0.65 arcsec for both bands. 

Credit:

ESO

About the Image

Id:eso0006a
Type:Observation
Release date:17 February 2000
Related releases:eso0006
Size:942 x 862 px

About the Object

Name:AXAF Deep Field
Type:• Early Universe : Galaxy : Grouping : Cluster
• X - Galaxy Clusters

Image Formats

Fullsize Original
617.2 KB
Large JPEG
400.3 KB
Screensize JPEG
416.7 KB

Wallpapers

1024x768
376.8 KB
1280x1024
558.9 KB
1600x1200
710.3 KB
1920x1200
745.5 KB
2048x1536
968.2 KB

Colours & filters

BandTelescope
Infrared
K
Very Large Telescope
ISAAC

 

Also see our