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   52139
   ROSAT observations of narrow-line Seyfert 1s found consistently steep
   spectra and rapid variability, but ASCA observations show more
   diversity, very different to classical Seyfert 1s. However, in 3 NLS1s,
   ASCA finds common characteristics of these exciting new class of AGN: a
   very strong high temperature soft excess, weak hard tail, a possible
   blue shifted ionized Oxygen edge, and rapid large amplitude variability
   characterized by nonlinear flares and quiescent periods. These objects
   have one thing in common: a very steep ROSAT spectrum. It is necessary
   to observe many more such objects in order to understand the physical
   processes underlying the different phenomenology in ASCA. We propose
   ASCA observations of two steep spectrum NLS1s discovered by ROSAT's all
   sky survey.
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