SIMBAD references

2011ApJS..193....3R - Astrophys. J., Suppl. Ser., 193, 3 (2011/March-0)

Spectral survey of X-ray bright active galactic nuclei from the rossi X-ray timing explorer.

RIVERS E., MARKOWITZ A. and ROTHSCHILD R.

Abstract (from CDS):

Using long-term monitoring data from the Rossi X-ray Timing Explorer (RXTE), we have selected 23 active galactic nuclei (AGNs) 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.

Abstract Copyright:

Journal keyword(s): galaxies: active - X-rays: galaxies

Status at CDS:  

Simbad objects: 28

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