SUMMARY OF PROPOSAL 41224 DR TAKAYA OHASHI TOKYO METROPOLITAN UNIVERSITY TOKYO JAPAN 192-03 HACHIOJI 1-1, MINAMI-OHSAWA E-mail: OHASHI@PHYS.METRO-U.AC.JP Tel: +81-426-77-2492 Fax: +81-426-77-2483 Medium: 4GBDAT Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS Title: STUDY OF THE METAL-POOR GAS IN THE POOR GROUP OF GALAXIES HCG97 Abstract: ASCA has detected unusually low metal abundance in the hot gas in poor groups of galaxies, such as NGC2300 and HCG62. The proposed target, HCG97, is a bright group of galaxies for which very low abundance is suggested from ROSAT PSPC measurements. This observation aims to find the cause of the low metal abundance based on the precise information on the gass mass and gravitational mass of the system. The hot gas features around elliptical and spiral galaxies would also tell us how the intracluster space is enriched with the gas ejected from galaxies. Co-Is: 1 NORIKO YAMASAKI TOKYO METROPOLITAN U JAPAN (No Co-I contact data) 2 KEN'ICHI KIKUCHI TOKYO METROPOLITAN U JAPAN 3 KUNIAKI MASAI TOKYO METROPOLITAN U JAPAN 4 YASUSHI FUKAZAWA UNIV. OF TOKYO JAPAN 5 KAZUO MAKISHIMA UNIV. OF TOKYO JAPAN 6 YUZURU TAWARA NAGOYA UNIV. JAPAN Target Name PRI RA Dec Time TC Off GIS SIS_Cts Obs ------------------- --- -------- -------- ---- -- --- --- ------- --- HCG 97 2 356.8454 -2.3006 100 N Y P 0.15000 1