SUMMARY OF PROPOSAL 51221
RIKEN
SAITAMA JAPAN 351-01
WAKO-SHI
2-1 HIROSAWA
Tel: 048-462-1111 EX.3228 Fax: 048-462-4640
Medium: 4GBDAT
Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS
SEARCH FOR DIFFUSE X-RAY EMISSION SURROUNDING GROUP OF GALAXIES
ABSTRACT
From observational facts and theoretical arguments, groups of galaxies are thought to be very funny objects. They contain very old galaxies named elliptical galaxies, while they must be very young system dynamically. Therefore we propose the model that group of galaxies were formed quite recently in supercluster environment. We propose to observe one of the nearest group of galaxies, HCG68, to look for diffuse X-ray emission associated with supercluster.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| MAKOTO HATTORI | TOHOKU-UNIV. | JAPAN |
| TAKAYA OHASHI | TOKYO METRO-UNIV. | JAPAN |
| KEN'ICHI KIKUCHI | TOKYO METRO-UNIV. | JAPAN |
| YASUSHI FUKAZAWA | UNIV. OF TOKYO | JAPAN |
| HAJIME EZAWA | UNIV. OF TOKYO | JAPAN |
| TAKAYUKI TAMURA | UNIV. OF TOKYO | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)HCG68 | 3 | 208.4204 | 40.3281 | 40 ks | N | Y | P | 0.09000 | 1 |