{
  "id": "astro-ph/0511236",
  "version": "v1",
  "published": "2005-11-08T20:14:21.000Z",
  "updated": "2005-11-08T20:14:21.000Z",
  "title": "Ionization structure of the warm wind in NGC 5548",
  "authors": [
    "K. C. Steenbrugge",
    "J. S. Kaastra",
    "D. M. Crenshaw",
    "S. B. Kraemer",
    "N. Arav",
    "I. M. George",
    "D. A. Liedahl",
    "F. B. S. Paerels",
    "T. J. Turner",
    "T. Yaqoob"
  ],
  "comment": "2 pages, 2 figures, to appear in the proceedings of \"The X-ray Universe 2005\", San Lorenzo de El Escorial (Spain), 26-30 September 2005",
  "categories": [
    "astro-ph"
  ],
  "abstract": "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.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2005-11-08T20:14:21.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "ionization structure",
      "warm wind",
      "velocity structure",
      "ionization parameter",
      "highest outflow velocity component"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 2,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 697200
    }
  }
}