chandra_173 September 6th, 2001
Credit: NASA/MIT/J.Arabadjis et al.
Using Chandra's image and spectrum of this distant galaxy cluster, scientists were able to determine the mass and the distribution of the dark matter in the cluster. They found that the dark matter mass is about 4 times that of normal matter, and the relative percentage of dark matter increases toward the center of the cluster. These precise measurements of the increase of dark matter toward the center of the cluster make it possible to set limits on the rate at which the dark matter particles collide with each other in the cluster. Such information will allow scientists to better determine the nature of dark matter, which is thought to be the most common form of matter in the universe.
Provider: Chandra X-ray Observatory
Image Source: http://chandra.harvard.edu/photo/2001/0164/
Curator: Chandra X-ray Observatory, Cambridge, MA, USA
Image Use Policy: http://chandra.harvard.edu/photo/image_use.html
Detailed color mapping information coming soon...
Providers | Sign In