SUMMARY OF PROPOSAL 41274 DR TAKESHI GO TSURU KYOTO UNIV. KYOTO JAPAN 606-01 KYOTO KITASHIRAKAWA E-mail: TSURU@CR.SCPHYS.KYOTO-U.AC.JP Tel: (81)-75-753-3843 Fax: (81)-75-701-5377 Medium: 2.5GB8MM Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS Title: DIFFUSE X-RAY STRUCTURE OF SHAPLEY SUPERCLUSTER Abstract: The Shapley Supercluster is one of the nearest Supercluster and the rechest in the nearby Supercluster. There are four clusters of galaxies (A3562, SC1329-313, SC1327-312, A3558) are in a samall region of ~10Mpc around the supercluster core. The sum of the gravitational masses of the four clusters is enough to confine the four clusters itselves gravitationally. The observational fact that EXOSAT flux around A3562 exceeds Einstain flux by factor of two implies an existance of diffuse X-ray component whose surface brightness is too low to be detected with Einstein. The prime purpose is to detect the diffuse X-ray emission. Probably its origin is hot gas confined by the supercluster gravitational potential. Co-Is: 1 HISAMITSU AWAKI KYOTO JAPAN (No Co-I contact data) 2 HIROSHI TOMIDA KYOTO JAPAN 3 HIRONORI MATSUMOTO KYOTO JAPAN 4 YUTAKA FUJITA KYOTO JAPAN 5 KOJI OHTA KYOTO JAPAN 6 KIYOSHI HAYASHIDA OSAKA JAPAN 7 MAKOTO HATTORI MPE GERMANY Target Name PRI RA Dec Time TC Off GIS SIS_Cts Obs ------------------- --- -------- -------- ---- -- --- --- ------- --- P1 (NEAR A3562) 2 203.3604 -31.6729 20 N N P 1.12000 1 REMARKS: IF ALL THE EXPOSURE IS NOT ACCEPTABLE, PLEASE DO NOT REDUCE NO. OF TARGETS BUT REDUCE EXPOSURE OF EACH TARGET. NEAR SKY WAS OBSERVED BUT THIS OBSERVATION IS NECESSARY AS THE AIM IS MAPPING. P2 (SC REGION) 2 202.9700 -31.5070 50 N N P 0.14000 1 REMARKS: IF ALL THE EXPOSURE IS NOT ACCEPTABLE, PLEASE DO NOT REDUCE NO. OF TARGETS BUT REDUCE EXPOSURE OF EACH TARGET. NEAR SKY WAS OBSERVED BUT THIS OBSERVATION IS NECESSARY AS THE AIM IS MAPPING. P3 (NEAR SC1329) 2 202.9708 -31.8403 30 N N P 0.28000 1 REMARKS: IF ALL THE EXPOSURE IS NOT ACCEPTABLE, PLEASE DO NOT REDUCE NO. OF TARGETS BUT REDUCE EXPOSURE OF EACH TARGET. NEAR SKY WAS OBSERVED BUT THIS OBSERVATION IS NECESSARY AS THE AIM IS MAPPING.