Ring Of Black Holes

Ring OF Black Holes - NASA

Arp 147 is the name given to this pair of interacting galaxies located in the Milky Way Galaxy at a distance of about 430 million light years away. This image is a composite made by data from both the Hubble Space Telescope and the Chandra x-ray observatory. The pink is from the Chandra observatory while the red, green and blue is obtained from  the Hubble telescope and the Space Telescope Science Institute in Baltimore, MD. which depicts relativly young stars that are large and short lived in the remnant of the spiral galaxy on the right which is an expanding wave of star formation  in the blue ring that is occuring after the collision with the elliptical galaxy on the left which is mostly pink from the x-ray emission picked up by Chandra. After a few million years these large stars will explode into supernova, leaving behind neutron stars and black holes. The nine bright x-ray sources in the midst of the blue ring must be black holes because they emit such a large amount of x-ray emission. Other telescopes add additional data such as the NASA Spitzer Space Telescope as well as NASA’s Galex Explorer.