YITP WORKSHOP ON
Quasi-Periodic Oscillations and Time Variabilities of Accretion Flows
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ABSTRACT

NAME
INSTITUTE
TITLE OF THE TALK
Y. Terashima
Ehime Univ., Japan
Time Variability of AGNs
Results from new observations of broad-band X-ray spectral variability of AGNs are presented. Data from the Suzaku observatory can be used to decompose the multiple variable components by using high S/N broad band spectra. The spectral variability of many type 1 AGNs are described by a two component model consising of a variable power law, a constant Fe-K line, and a constant reflection continuum on a time scale of a day. On shorter time scales, the shape of Fe-K line often varies and supports the idea that a fraction of Fe-K line comes from the inner part of an accretion disk.


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