The star factory: observing Arp 220
Saturday, February 18, 2012 - 13:01
in Astronomy & Space
Using the Herschel Space Observatory, Wilson's group has found Arp 220 to have large amounts of very warm molecular hydrogen gas, a surprising find that implies molecular hydrogen is the dominant coolant in the high-temperature gas. Wilson's team has also observed a massive wind from the center of the galaxy, removing molecular gas from the central star forming core.