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   71125
   Now, in AXAF/XMM area, we have to propose the subject that is
   compatible with AXAF/XMM. X-ray variability is a distinguishing
   property of AGN, and the energies and time scales of the emission
   dictate that the X-rays must originate very close to the central
   engine. Recently it is found that the narrow-line Seyfert 1 galaxies
   show the largest variability in AGN, giving one order magnitude of the
   variability than normal Seyfert 1 galaxies. There are also narrow-line
   QSO similar to NLS1, but they have longer time scale of variability.
   Here we start to propose the NLQSO, Pks 0555-504.
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