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   82123
   X-ray variability is a defining characteristic of AGN; however, we
   still don't understanding why they vary. It has been shown that the AGN
   subclass known as Narrow-line Seyfert 1 galaxies (NLS1s) show higher
   amplitude variability than other Seyferts, a fact that compounds the
   mystery. The opportunity for long continuous ASCA observations provides
   the potential for a significant breakthrough in our understanding. We
   propose a three-week observation of IRAS 13224-3809, an object that
   shows extreme spectral and variability properties even for an NLS1.
   Timing and spectral analysis will focus on a search for a
   characteristic time scale, light curve modeling, tests for nonlinear
   variability, and spectral variability studies of this enigmatic object.
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