SUMMARY OF PROPOSAL 71184

MR. HARUYOSHI KATAYAMA
HKATAYAM@ESS.SCI.OSAKA-U.AC.JP

OSAKA UNIVERSITY
1-1, MACHIKANEYAMA
TOYONAKA
OSAKA JAPAN 560-0043
Tel: 06-850-5475 Fax: 06-850-5539
Medium: 2.5GB8MM
Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS

OBSERVATION OF THE LENSING CLUSTER OF GALAXIES ABELL S295


ABSTRACT

There are mainly two methods to determine the total mass of clusters of galaxies. One is the method to use the configurations of arcs by optical observations. The other is the method to use the X-Ray observations. However, many clusters show a mass discrepancy between total masses deduced from these methods. We are interested in the cluster of galaxies Abell s295. There is no mass discrepancy in Abell s295 (Wu & Fang 1998). However, Wu & Fang estimated the X-Ray temperature from Lx-kT relation.If X-ray spectrum is available ,we can determine the temperature of the ICM observationally. Our final goal is to try to find the cause of the mass discrepancy.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
KIYOSHI HAYASHIDAOSAKA UNIJAPAN

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)ABELL S295
B
 41.3792-53.0389
50 ks
N
N
P
0.16700
1