SUMMARY OF PROPOSAL 71078
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
THE SHAKHBAZYAN'S COMPACT GROUPS AS POSSIBLE DARK CLUSTERS
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 FUKAZAWA | UNIVERSITY OF TOKYO | JAPAN |
| KAZUHIRO NAKAZAWA | UNIVERSITY OF TOKYO | JAPAN |
| MAKOTO TASHIRO | UNIVERSITY OF TOKYO | JAPAN |
| HAIGUANG XU | SHANGHAI JIAOTONG U. | CHINA |
| KEIICHI KODAIRA | NAOJ | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)SCGG 205 | A | 188.8542 | 27.5667 | 50 ks | N | Y | P | 0.01000 | 1 |
| 2)SCGG 223 | A | 237.4583 | 29.1500 | 50 ks | N | Y | P | 0.01000 | 1 |