Optical studies of X-ray clusters of galaxies. IV. Velocity dispersions for the cD clusters A496 and A2052.
Abstract
Spectroscopic observations carried out at CTIO and La Silla of two regular, elliptically dominated, rich Abell clusters with central cD galaxies are presented. Velocity dispersions of 657 (+ 104, - 72) km/s for A496, and 576 (+ 83, - 60) km/s for A2052 are derived. Some of the consequences of these values for the proposed interpretations of the X-ray characteristics of both clusters are briefly discussed.
- Publication:
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The Astronomical Journal
- Pub Date:
- March 1985
- DOI:
- Bibcode:
- 1985AJ.....90..410Q
- Keywords:
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- Astronomical Spectroscopy;
- Elliptical Galaxies;
- Galactic Clusters;
- Velocity Distribution;
- Visible Spectrum;
- X Ray Sources;
- Astronomical Catalogs;
- Radial Velocity;
- Red Shift;
- Astronomy