An X-ray Baldwin effect for the narrow Fe K-alpha lines observed in Active Galactic Nuclei

Details An X-ray Baldwin effect for the narrow Fe K-alpha lines observed in Active Galactic Nuclei An X-ray Baldwin effect for the narrow Fe K-alpha lines observed in Active Galactic Nuclei

2003-09-15

arxiv.org/abs/astro-ph/0309394v1

Mon.Not.Roy.Astron.Soc.347:316,2004

Astronomy and Astrophysics

Astrophysics

8 pages, 6 figures, accepted by MNRAS

Scientific paper

10.1111/j.1365-2966.2004.07203.x

The majority of Active Galactic Nuclei (AGN) observed by XMM-Newton reveal narrow Fe K-alpha lines at ~ 6.4 keV, due to emission from cold (neutral) material. There is an X-ray Baldwin effect in Type I AGN, in that the equivalent width of the line decreases with increasing luminosity, with weighted linear regression giving EW ~ L^{-0.17+/-0.08} (Spearman Rank probability of > 99.9%). With current instrumental capabilities it is not possible to determine the precise origin for the narrow line, with both the Broad Line Region and putative molecular torus being possibilities. A possible explanation for the X-ray Baldwin effect is a decrease in covering factor of the material forming the fluorescence line.

Affiliated with

Also associated with

No associations

Rating

An X-ray Baldwin effect for the narrow Fe K-alpha lines observed in Active Galactic Nuclei does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An X-ray Baldwin effect for the narrow Fe K-alpha lines observed in Active Galactic Nuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An X-ray Baldwin effect for the narrow Fe K-alpha lines observed in Active Galactic Nuclei will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-510848