SUMMARY OF PROPOSAL 41168
PROF. MASARU MATSUOKA
THE INSTITUTE OF PHYSICAL AND CHEMICAL RESEARCH (RIKEN)
SAITAMA JAPAN 351-01
WAKO-SHI
2-1 HIROSAWA

  E-mail: MATSUOKA@POSTMAN.RIKEN.GO.JP	Tel: 048-462-1111 EXT. 3221	Fax: 048-462-4640
  Medium: 4GBDAT

Subject: AGN                                                         
  Title: LOW LUMINOSITY QUASARS CAN CONTRIBUTE TO THE CXB ?                              


Abstract:
 Recent ASCA and ROSAT observations have given us a common view on the CXB: (1)
 According to the ROSAT Log S - Log N, AGN as weak as 10**-14~-15 erg/cm2/s
 contribute about 60% of the CXB (Hasinger et al. 1993). (2) ASCA observations of
 bright high z quasars showed steeper spectral indices than that of the CXB (Siebert,
 Matsuoka et al. 1995). (3) It is believed that low luminous AGN are major components
 of the CXB, but it is not yet clear what kind of AGN contribute to the CXB. In order
 to examine this view we propose to observe some low luminous quasars. Here we pick
 up some unobserved nearby quasars with bright optical absolute magnitude. Thus we
 investigate a common feature of low luminous AGN, in which we expect some different property from Seyfert galaxies.

 Co-Is:
   1  MASSIMO CAPPI       	RIKEN                         JAPAN     
      (No Co-I contact data)
   2  CHIKO OTANI         	RIKEN                         JAPAN     
   3  TATEHIRO MIHARA     	RIKEN                         JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
PG0844+349             3  131.9271   34.7512    40   N   N   P  2.50000   1