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   PR # 41168
   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.
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