Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-11-08
Astronomy and Astrophysics
Astrophysics
2 pages, 2 figures, to appear in the proceedings of "The X-ray Universe 2005", San Lorenzo de El Escorial (Spain), 26-30 Septe
Scientific paper
We present the results from our 140 ks XMM-Newton and 500 ks Chandra observation of NGC 5548. The velocity structure of the X-ray absorber is consistent with the velocity structure measured in the simultaneous UV spectra. In the X-rays we can separate the highest outflow velocity component, -1040 km/s, from the other velocity components. This velocity component spans at least three orders of magnitude in ionization parameter, producing both highly ionized X-ray absorption lines (Mg XII, Si XIV) and UV absorption lines. A similar conclusion is very probable for the other four velocity components. We show that the lower ionized absorbers are not in pressure equilibrium with the rest of the absorbers. Instead, a model with a continuous distribution of column density versus ionization parameter gives an excellent fit to our data.
Arav Nahum
Crenshaw Michael D.
George Ian Michael
Kaastra Jelle S.
Kraemer Steven B.
No associations
LandOfFree
Ionization structure of the warm wind in NGC 5548 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 Ionization structure of the warm wind in NGC 5548, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ionization structure of the warm wind in NGC 5548 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-103481