Microwave search for ionized gas in clusters of galaxies
Abstract
Using the 11-meter NRAO telescope at a wavelength of 9 mm, 16 clusters of galaxies were examined for evidence of a change in temperature of the cosmic microwave background radiation which might be produced by inverse Compton scattering by electrons in hot intergalactic gas. For 15 of the clusters, no significant evidence of the effect was found at a level of sensitivity comparable to other published studies. In particular, the effect reported for Abell 2218 is not confirmed. A significant temperature decrement in Abell 576 is detected.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1980
- DOI:
- 10.1086/157880
- Bibcode:
- 1980ApJ...237..378L
- Keywords:
-
- Background Radiation;
- Cosmic Plasma;
- Galactic Clusters;
- Intergalactic Media;
- Ionized Gases;
- Microwave Emission;
- Compton Effect;
- Electron Scattering;
- Millimeter Waves;
- Radio Sources (Astronomy);
- Astrophysics