NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-24 T17:20:16 PDT
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For refcode 2009PASJ...61.1331M:
Retrieve 36 NED objects in this reference.
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NED Abstract

Copyright by Astronomical Society of Japan. 2009PASJ...61.1331M Broad-Band Temporal and Spectral Variation of 36 Active Galactic Nuclei Observed with Suzaku Miyazawa, Takuya; Haba, Yoshito; Kunieda, Hideyo Abstract. 36 AGN data observed by Suzaku were compiled to examine the temporal variability in different energy bands covered by soft X-ray imaging systems (XRT + XIS: 0.5-10 keV) and Hard X-ray Detector (HXD: 15-50 keV) aboard Suzaku. Three band light curves were obtained in L (0.5-2 keV), M (2-10 keV), and H (15-50 keV) with a time binning of 5760 s. The L-band flux change was almost proportional to that of the M-band without offsets in most of type-1 AGNs. The slope (= dL/dM) of the correlation changed by more than a factor of 10 from Seyfert 2 to narrow-line Seyfert 1 galaxies (NLS1). The power-law component can explain the slope of Seyfert 1 galaxies with a typical index, Gamma, of 1.9. For NLS1s with steeper slopes, an additional soft excess component is needed, whose variation should be proportional to that of the power-law component. It gives a new constraint to models for the soft excess component. The H-band flux change is a linear function of the M-band flux with a significant offset in the H-band. The slope can be explained by the power-law component with an absorption column from 10^22-24^ cm^-2^. The offset can be attributed to the reflection component, which is stable on a time scale of days. Key words: galaxies: active, galaxies: Seyfert, X-rays: galaxies
Retrieve 36 NED objects in this reference.
Please click here for ADS abstract

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