X-ray observations of the Coma and Virgo clusters from Copernicus
Abstract
THE X-ray sources in both the Virgo and Coma clusters of galaxies are known to be extended. We report here observations to determine the spatial characteristics of each source using the two grazing incidence reflecting telescopes and the collimated proportional counters on board Copernicus1.
- Publication:
-
Nature
- Pub Date:
- August 1974
- DOI:
- 10.1038/250471a0
- Bibcode:
- 1974Natur.250..471G