Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.7222p&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #72.22; Bulletin of the American Astronomical Society, V
Astronomy and Astrophysics
Astronomy
Scientific paper
The archival BeppoSAX (MECS and PDS) data, for a sample of the fifteen brightest Seyfert 1 galaxies, are analyzed to examine the broad-band X-ray spectral features of Compton reflection and iron line flourescence, which arise from the inner regions around the supermassive black hole, such as the putative torus and/or the accretion disk. The results from the Chandra HETG observations for this sample (see Yaqoob & Padmanabhan 2004) are used to fix the line core parameters, with the intensity of the line free to vary as the two instruments are not cross normalized. We checked for the presence of a relativistically broadened iron line and tried to constrain the line parameters. We also looked for variability in the spectral features since many of the objects in our sample had been observed multiple times by BeppoSAX. Lastly we looked for evidence of a relation between the equivalent width W of the iron line and the reflection coefficient R and the equivalent width W and the slope of the power law.
Padmanabhan Urmila
Weaver Kimberley A.
Yaqoob Tahir
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