SUMMARY OF PROPOSAL 61208
NAGOYA UNIVERSITY
AICHI-KEN JAPAN 464-01
NAGOYA
FURO-CHO, CHIKUSA-KU
Tel: 81-52-789-3540 Fax: 81-52-789-2919
Medium: 4GBDAT
Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS
SPECTRAL OBSERVATION OF A LOW LUMINOSITY DISTANT RICH CLUSTER OF GALAXIES A777
ABSTRACT
A low luminous distant cluster of galaxies A777(z=0.224) is selected from the complete sample of nine rich cluster (richness >3 and galaxy counts > 200) listed in Abell Catalog. All of which were observed by Einstein. The spectral informations of luminous clusters were obtained by ASCA and Ginga observations. It is important to observe less luminous clusters with similar galaxy counts in relation with the formation and evolution of clusters. The comparison of temperature and abundance between them gives a clues to investigate the cluster merging.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| YUZURU TAWARA | NAGOYA UNIV. | JAPAN |
| AKIHIRO FURUZAWA | NAGOYA UNIV. | JAPAN |
| FUMIE AKIMOTO | NAGOYA UNIV. | JAPAN |
| MANABU WATANABE | NAGOYA UNIV. | JAPAN |
| NORIO NAKAJO | NAGOYA UNIV. | JAPAN |
| SHIGERU MIYOSHI | KYOTO SANGYO UNIV. | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)A777 | 3 | 142.0750 | 78.2170 | 40 ks | N | Y | P | 0.04000 | 1 |