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    PR # 31086                                                                   
       ASCA detected the Iron 6.4 keV fluoressence lines near the Galactic       
      Center.  These lines look like type2 Seyfert. What is the origin ? D       
     oes the Galactic Center Nuclei have the massive blackhole? We try to        
     solve this puzzle. SgrA* is the direct challenge for searching the ma       
     ssive blackhole. We can know the time variabirity of SgrA*. There are       
      many interesing objects in the SgrA field of view : A1742-289, Radio       
      Arc, the Giant Moleculer Clouds etc. We can know the time variavilit       
     y of them, too. SgrD is the indirect challenge. We search for the new       
      6.4 keV line emitters.                                                     
                                                                                 
                                                                                 
                                                                                 
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