ASCA Observations of a Near-by Cluster in Antlia
Abstract
The Antlia cluster is a near-by poor cluster which has a redshift of z = 0.0087. X-ray observations with ASCA have revealed that the cluster is almost isothermal in the X-ray with a temperature of kT ~ 2.0 keV. The metal abundance is Z ~ 0.35\ ZSolar , and the 0.5-10.0 keV cluster luminosity is ~ 3.4 x 1042\ h75-2 erg s-1 within r < 250\ h-175 kpc. There was no X-ray central excess brightness and little central cool component, which are frequently seen in near-by poor clusters. The Antlia cluster is the nearest poor cluster without these central features.
- Publication:
-
Publications of the Astronomical Society of Japan
- Pub Date:
- August 2000
- DOI:
- 10.1093/pasj/52.4.623
- Bibcode:
- 2000PASJ...52..623N
- Keywords:
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- GALAXIES: CLUSTERS: INDIVIDUAL (ABELL S636);
- GALAXIES: INDIVIDUAL (NGC 3268);
- GALAXIES: INTERGALACTIC MEDIUM;
- ICM: X-RAYS;
- X-RAYS: GENERAL