Absence of Lyman-Alpha Emission from the Coma Cluster of Galaxies.
Abstract
The redshifted La flux from the Coma cluster of galaxies is determined to be less than 6000 photons 1, leading to severe (and perhaps fatal) new restrictions on hot ionized gas models for the gravitational binding of the cluster.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1972
- DOI:
- 10.1086/180899
- Bibcode:
- 1972ApJ...172L..97H