SUMMARY OF PROPOSAL 71077

DR. KAZUO MAKISHIMA
MAXIMA@PHYS.S.U-TOKYO.AC.JP

UNIVERSITY OF TOKYO
7-3-1 HONGO
BUNKYO-KU
TOKYO JAPAN 113-0033
Tel: 03-3812-2111 EXT.4171 Fax: 03-3812-6938
Medium: 2.5GB8MM
Subject: NORMAL GALAXIES

PARTICLE ACCELERATION IN THE SHAKHBAZYAN'S COMPACT GROUP SCGG 202


ABSTRACT

Significant hard X-ray emission has been detected with ASCA from a number of galaxy groups. The hard X-rays, presumably of non-thermal nature, suggest that the intra-group space is a site of extensive particle acceleration. In order to test this hypothesis, we propose a 80 ksec observation of the Shakhbazyan' compact group No.202 (SCGG 202). Although this compact group has a very high galaxy density and a high velocity dispersion (450 km/s), its X-ray properties is totally unknown.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
YASUSHI FUKAZAWAUNIVERSITY OF TOKYOJAPAN
NAOKI ISOBEUNIVERSITY OF TOKYOJAPAN
KAZUHIRO NAKAZAWAUNIVERSITY OF TOKYOJAPAN
MAKOTO TASHIROUNIVERSITY OF TOKYOJAPAN
HAIGUANG XUSHANGHAI JIAOTONG U.CHINA
KEIICHI KODAIRANAOJJAPAN

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)SCGG 202
A
184.9583 28.4000
80 ks
N
Y
P
0.10000
1