SUMMARY OF PROPOSAL 41247
DR. YUZURU TAWARA
NAGOYA UNIVERSITY
AICHI JAPAN 464-01
NAGOYA
FURO-CHO, CHIKUSA-KU

  E-mail: TAWARA@SATIO.PHYS.NAGOYA-U.AC.JP	Tel: 81-52-789-2917	Fax: 81-52-789-2919
  Medium: 4GBDAT

Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS                      
  Title: DETERMINATION OF THE METAL ABUNDANCE OF THE HOT INTRAGROUP MEDIUM IN THE RXJ1756.5


Abstract:
 We propose to observe ROSAT detected group of galaxies accompanied with hot diffuse
 gas. Since metal abundances of these intragroup medium show similar value of that
 for intracluster medium or very low value of < 0.1, whether the origin of this
 diffuse gas is closely related to that of cluster or not is unclear. RXJ1756.5 is
 X-ray bright group of galaxies and one of the best candidate for ASCA to do this
 kind of study, whose metal abundance has not been determined yet.

 Co-Is:
   1  KATSUAKI ISOBE      	NAGOYA UNIV.                  JAPAN     
      (No Co-I contact data)
   2  AKIKO KUMADA        	NAGOYA UNIV.                  JAPAN     
   3  KOUJUN YAMASHITA    	NAGOYA UNIV.                  JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
RXJ1756.5              3  269.1313   65.2158    40   N   Y   P  0.06000   1