Fe K Emission and Absorption in the Bright Seyfert IC 4329a

Details Fe K Emission and Absorption in the Bright Seyfert IC 4329a Fe K Emission and Absorption in the Bright Seyfert IC 4329a

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.1803m&link_type=abstract

American Astronomical Society Meeting 207, #18.03; Bulletin of the American Astronomical Society, Vol. 37, p.1184

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a re-analysis of the XMM-EPIC long-look of the X-ray bright Seyfert AGN IC 4329a, complementary to the RGS/EPIC analysis of Steenbrugge et al (2005). The Fe K bandpass is dominated by emission consistent with moderately-broadened Fe K alpha and beta. We detect, at high significance (confirmed with Monte Carlo simulations), a narrow absorption feature at 7.7 keV; one possible candidate for this feature's origin is highly blueshifted Fe K XXVI. Time-resolved spectrscopy of the XMM data as well as RXTE monitoring data, covering time scales from minutes to 2 years, show there is little variability in continuum flux or photon index on any time scale. There is no evidence for variability of the Fe K alpha line on any time scale, consistent with an origin far from the black hole (e.g., as discussed by previous works).

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