Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011pasj...63s.669i&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.63, No.SP3, pp.S669-S675
Astronomy and Astrophysics
Astronomy
Galaxies: Active, Galaxies: Individual (Mcg -6-30-15), Galaxies: Seyfert, X-Rays: Galaxies
Scientific paper
A new X-ray spectro-temporal data-analysis method, which we call ``the difference variation function method'', is introduced. It can analyze spectral and temporal variations of X-ray sources, and its merits are discussed in comparison with conventional data-analysis methods. The new method is being applied to Suzaku observation data of the Seyfert 1 galaxy MCG -6-30-15. Consequently, it has been found that the observed spectral and temporal variations on a time scale of ≈ 10-100 ks are mostly ascribed to variable partially absorbers in front of the central X-ray source, whereas the X-ray source is intrinsically variable mainly on time scales shorter than ≈ 10 ks.
Ebisawa Ken
Inoue Hajime
Miyakawa Takehiro
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