SUMMARY OF PROPOSAL 71180

DR. KOUJUN YAMASHITA
YAMASITA@U.PHYS.NAGOYA-U.AC.JP

NAGOYA UNIVERSITY
FURO-CHO, CHIKUSA-KU
NAGOYA
AICHI-KEN JAPAN 464-8602
Tel: 81-52-789-3540 Fax: 81-52-789-2919
Medium: 4GBDAT
Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS

STUDY OF DYNAMICAL STRUCTURE OF RICH CLUSTERS WITH X-RAY AND OPTICAL OBSERVATIONS


ABSTRACT

The distribution of radial velocity and plasma temperature gives a clue to make clear the dynamical structure of a cluster of galaxies. However there are no significant correlations between physical parameters derived from optical and X-ray observations. The detailed optical observations of Abell clusters(z<0.1) in the southern sky were carried out by ESO key programme. We have selected two rich clusters, A3128(z=0.0600) and A3695(z=0.0893) among them. Their X-ray imaging observations have not been reported by any satellites. We aim at investigating the beta-problem, origin of ICM and substructure merging.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
YUZURU TAWARANAGOYA UNIV.JAPAN
AKIHIRO FURUZAWANAGOYA UNIV.JAPAN
FUMIE AKIMOTONAGOYA UNIV.JAPAN
MANABU WATANABENAGOYA UNIV.JAPAN
HARUMI TAKATANAGOYA UNIV.JAPAN
SHIGERU MIYOSHIKYOTO SANGYO UNIV.JAPAN
ALAIN MAZURECNRS, LASFRANCE
YASUKI KUMAIKUMAMOTO GAKUEN UNIVJAPAN

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)A3128
C
52.5500-52.5500
50 ks
N
Y
P
0.90000
1