Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-08-29
Astrophys.J.630:L129-L132,2005
Astronomy and Astrophysics
Astrophysics
15 pages, 4 figures. Accepted for publication in ApJ Letters
Scientific paper
10.1086/491646
We present the discovery of four absorption lines in the X-ray spectrum of the Seyfert Galaxy NGC 1365, at energies between 6.7 and 8.3 keV. The lines are detected with high statistical confidence (from >20sigma for the strongest to \~4sigma for the weakest) in two XMM-Newton observations 60 ksec long. We also detect the same lines, with lower signal-to-noise (but still >2sigma for each line) in two previous shorter (~10 ksec) XMM observations. The spectral analysis identifies these features as FeXXV and FeXXVI Kalpha and Kbeta lines, outflowing with velocities varying between ~1000 to ~5000 km/s among the observations. These are the highest quality detections of such lines so far. The high equivalent widths (EW(Kalpha)~100 eV) and the Kalpha/Kbeta ratios imply that the lines are due to absorption of the AGN continuum by a highly ionized gas with column density N_H~5x10^23 cm^{-2}
Baldi Alessandro
Bianchi Simone
Elvis Martin
Fabbiano Giuseppina
Matt Giorgia
No associations
LandOfFree
Highly ionized iron absorption lines from outflowing gas in the X-ray spectrum of NGC 1365 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 Highly ionized iron absorption lines from outflowing gas in the X-ray spectrum of NGC 1365, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly ionized iron absorption lines from outflowing gas in the X-ray spectrum of NGC 1365 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-404489