SUMMARY OF PROPOSAL 41277
DR ISAMU HATSUKADE
MIYAZAKI UNIVERSITY
MIYAZAKI JAPAN 889-21
MIYAZAKI
1-1 GAKUEN-KIBANADAI-NISHI

  E-mail: HATUKADE@ASTRO.MIYAZAKI-U.AC.JP	Tel: 0985-58-2867	Fax: 0985-55-3058
  Medium: 4GBDAT

Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS                      
  Title: ASCA OBSERVATIONS OF GROUP OF GALAXIES IN ROSAT SURVEY                          


Abstract:
 Poor clusters and rich clusters have similar iron abundance about 0.3 solar, while
 groups of galaxies have very low iron abundance about 0.1. This difference may be
 the result of different star formation history. The ratio of silicon and iron
 abundance is the key parameter to show the contribution of SNIa and SNII. We propose
 to observe two groups of galaxies, RXJ1736.4+6804 and RXJ1755.8+6236 to determine this parameter.

 Co-Is:
   1  HITOSHI HANAMI      	IWATE UNIV.                   JAPAN     
      (No Co-I contact data)
   2  NOBUO ARIMOTO       	UNIV. TOKYO                   JAPAN     
   3  KAZUHIRO SHIMASAKU  	UNIV. TOKYO                   JAPAN     
   4  YUTAKA FUJITA       	KYOTO UNIV.                   JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
RXJ1736.4+6804         3  264.1154   68.0753    40   N   Y   P  0.10000   1