{
  "id": "1109.2988",
  "version": "v1",
  "published": "2011-09-14T04:30:28.000Z",
  "updated": "2011-09-14T04:30:28.000Z",
  "title": "Polarisation of Class II Methanol Masers",
  "authors": [
    "P. D. Stack",
    "S. P. Ellingsen"
  ],
  "comment": "18 pages, 48 figures, accepted for publication in PASA",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We have used the University of Tasmania Mt Pleasant 26m radio telescope to investigate the polarisation characteristics of a sample of strong 6.7 GHz methanol masers, the first spectral line polarisation observations to be undertaken with this instrument. As part of this process we have developed a new technique for calibrating linear polarisation spectral line observations. This calibration method gives results consistent with more traditional techniques, but requires much less observing time on the telescope. We have made the first polarisation measurements of a number of 6.7 GHz methanol masers and find linear polarisation at levels of a few - 10% in most of the sources we observed, consistent with previous results. We also investigated the circular polarisation produced by Zeeman splitting in the 6.7 GHz methanol maser G9.62+0.20 to get an estimate of the line of sight magnetic field strength of 35+/-7 mG.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-09-14T04:30:28.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "ghz methanol maser",
      "polarisation spectral line observations",
      "linear polarisation spectral line",
      "pleasant 26m radio telescope",
      "spectral line polarisation observations"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1071/AS11029",
      "journal": "Publications of the Astronomical Society of Australia",
      "year": 2011,
      "month": "Oct",
      "volume": 28,
      "number": 4,
      "pages": 338
    },
    "note": {
      "typesetting": "TeX",
      "pages": 18,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 927439,
      "adsabs": "2011PASA...28..338S"
    }
  }
}