{
  "id": "astro-ph/9703018",
  "version": "v1",
  "published": "1997-03-04T10:56:28.000Z",
  "updated": "1997-03-04T10:56:28.000Z",
  "title": "ROSAT observations of two 'cooling flow' EMSS Galaxies",
  "authors": [
    "A. J. Blair",
    "I. Georgantopoulos",
    "G. C. Stewart"
  ],
  "comment": "6 pages, LaTeX, 6 postscript figures included, to appear in MNRAS",
  "categories": [
    "astro-ph"
  ],
  "abstract": "We present ROSAT observations of two luminous L~10^44 erg/s EMSS galaxies, MS1019+5139 and MS1209+3917, previously classified as 'cooling flow' galaxies. MS1019+5139 does not appear to be spatially extended (<13 kpc) while its spectrum is well fit by a power law with Gamma = 1.73 +0.19-0.18; X-ray variability on a timescale of ~ years is also clearly detected. MS1209+3917 shows no evidence of spatial extension (<50 kpc) but it shows variability, while its spectrum can be fit with thermal bremsstrahlung emission (kT=1.8 +0.9-0.4 keV) or a power law model (Gamma = 2.50 +0.44-0.42, but with excess photoelectric absorption above the Galactic value). All the above argue against thermal emission from a group of galaxies or a galaxy but in favour of an AGN (possibly BL Lac) interpretation. We conclude that no 'normal' galaxies with high X-ray luminosities have yet been detected in the EMSS survey that could be significant contributors to the X-ray background.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1997-03-04T10:56:28.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "rosat observations",
      "cooling flow",
      "erg/s emss galaxies",
      "thermal bremsstrahlung emission",
      "power law model"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1093/mnras/289.4.921"
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 460933
    }
  }
}