SUMMARY OF PROPOSAL 41151
DR. HITOSHI NEGORO
ISAS
KANAGAWA JAPAN 229
SAGAMIHARA
3-1-1 YOSHINODAI

  E-mail: NEGORO@ASTRO.ISAS.AC.JP	Tel: 0427-51-3911	Fax: 0427-59-4240
  Medium: 2.5GB8MM

Subject: AGN                                                         
  Title: EVOLUTION OF POWERFUL RADIO GALAXIES AND CLUSTER OF GALAXIES AT Z ~ 0.5.        


Abstract:
 In AO1 and AO3 observations of distant (z~0.5), powerful radio galaxies, from all of
 them, ASCA detected thermal X-ray emission from the clusters of galaxies surrounding
 them. Now we can complete our work if less-powerful at 5GHz, isolated radio
 galaxies, 3C275 and 3C306.1 are observed. Our statistical study of them will
 clearify the relation between the powerful radio galaxies and their surrounding
 clusters, and between the galaxies and the radio-laud QSOs. All of the results are
 very useful for the study of cosmological evolution of these objects.

 Co-Is:
   1  KIYOSHI HAYASHIDA   	OSAKA UNIVERSITY              JAPAN     
      (No Co-I contact data)


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
3C275                  3  190.5813   -4.7720    40   N   N   P  0.00200   1