Spectral Survey of X-Ray Bright Active Galactic Nuclei from the Rossi X-ray Timing Explorer

Details Spectral Survey of X-Ray Bright Active Galactic Nuclei from the Rossi X-ray Timing Explorer Spectral Survey of X-Ray Bright Active Galactic Nuclei from the Rossi X-ray Timing Explorer

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21743017r&link_type=abstract

American Astronomical Society, AAS Meeting #217, #430.17; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Using long-term monitoring data from the Rossi X-ray Timing Experiment (RXTE), we have selected 23 active galactic nuclei (AGN) with sufficient brightness and overall observation time to derive broadband X-ray spectra from 3 to >100 keV. Our sample includes mainly radio-quiet Seyferts, as well as seven radio-loud sources. Given the longevity of the RXTE mission, the greater part of our data is spread out over more than a decade, providing truly long-term average spectra and eliminating inconsistencies arising from variability. We present long-term average values of absorption, Fe line parameters, Compton reflection strengths and photon indices, as well as fluxes and luminosities for the hard and very hard energy bands, 2-10 keV and 20-100 keV respectively. We find tentative evidence for high energy rollovers in three of our objects. We improve upon previous surveys of the very hard X-ray energy band in terms of accuracy and sensitivity, particularly with respect to confirming and quantifying the Compton reflection component. This survey is meant to provide a baseline for future analysis with respect to the long-term averages for these sources and to cement the legacy of RXTE, and especially its High Energy X-ray Timing Experiment, as a contributor to AGN spectral science.

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