Arp 270: Two merging galaxies about 90
million light years from Earth.
Caption: Chandra's image of Arp 270
shows two galaxies in the early stage of a merger. The hot spots
(blue) are thought to be due to the formation of hundreds of
thousands of new stars as the two gaseous disks rotate through
each other. These bursts of star formation create many massive
stars that generate intense winds of hot gas. Eventually, these
massive stars explode as supernovas. This violent activity
produces the hot gas clouds that surround the galaxy disks
(red). In the image, red represents low, green intermediate, and
blue high-energy (temperature) X-rays.
Scale: Image is 4 arcmin on a
Chandra X-ray Observatory ACIS
CXC operated for
NASA by the Smithsonian Astrophysical