This optical (blue) and x-ray (red-orange) composite image shows Abell 2029, a cluster of galaxies. A large elliptical galaxy is visible in the center of the image, surrounded by smaller galaxies. The red diffuse emission shows hot intergalactic gas, heated to about 100 million degrees by the enormous gravity in the cluster, and visible only in X-rays. This galaxy cluster has a redshift of 0.078, at a distance corresponding to a light travel time of one billion years. Scale:
UID:
SPD-CHAND-photo/2004 /darkenergy/abell202 9_comp.tif
original url:
http://chandra.harv…
Image ID:
235946
Resolution Size:
5
Format:
JP2
Media Type:
Image
File Name:
abell2029_comp.jp2
Width:
2400
Height:
1498

Tags: galaxy, nasa, photo, space, star, Universe, X-ray/Optical Composite of Abell 2029

This entry was posted on Wednesday, May 5th, 2010 at 8:36 am and is filed under Photos, Universe. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.