SUMMARY OF PROPOSAL 61109
KUMAMOTO GAKUEN UNIVERSITY
KUMAMOTO JAPAN 862
KUMAMOTO
2-5-1 OE
Tel: 81-96-364-5161 EXT.1544 Fax: 81-96-372-0702
Medium: 4GBDAT
Subject: NORMAL GALAXIES
AN X-RAY STUDY OF A BINARY SYSTEM OF GALAXIES
ABSTRACT
In order to estimate correct total mass of a binary system of galaxies, we sugget to adopt mass determination method based on X-ray observation of hot gas associated with the system; such method is much more reliable than traditional one which is based on velocity difference and apparent separation between member galaxies of the system, if dark halo extends over orbit of the members. We propose an ASCA 100 ksec observation of a binary system of galaxies NGC 7679/NGC 7682 to explore such dark halo enveloping the entire system.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| YUZURU TAWARA | NAGOYA UNIVERSITY | JAPAN |
| SHINJI SATO | NAGOYA UNIVERSITY | JAPAN |
| MITSUAKI FUJIMOTO | NAGOYA UNIVERSITY | JAPAN |
| AKIHIKO FURUZAWA | NAGOYA UNIVERSITY | JAPAN |
| MANABU WATANABE | NAGOYA UNIVERSITY | JAPAN |
| KOUJUN YAMASHITA | NAGOYA UNIVERSITY | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)NGC 7679/NGC 7682 | 2 | 352.1967 | 3.5120 | 80 ks | N | Y | P | 0.02693 | 1 |