{
  "id": "1005.1943",
  "version": "v1",
  "published": "2010-05-11T20:36:20.000Z",
  "updated": "2010-05-11T20:36:20.000Z",
  "title": "Dust-temperature of an isolated star-forming cloud: Herschel observations of the Bok globule CB244",
  "authors": [
    "A. Stutz",
    "R. Launhardt",
    "H. Linz",
    "O. Krause",
    "T. Henning",
    "J. Kainulainen",
    "M. Nielbock",
    "J. Steinacker",
    "P. Andre"
  ],
  "comment": "Accepted for A&A Herschel Special Issue; 5 pages, 2 figures",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "We present Herschel observations of the isolated, low-mass star-forming Bok globule CB244. It contains two cold sources, a low-mass Class 0 protostar and a starless core, which is likely to be prestellar in nature, separated by 90 arcsec (~ 18000 AU). The Herschel data sample the peak of the Planck spectrum for these sources, and are therefore ideal for dust-temperature and column density modeling. With these data and a near-IR extinction map, the MIPS 70 micron mosaic, the SCUBA 850 micron map, and the IRAM 1.3 mm map, we model the dust-temperature and column density of CB244 and present the first measured dust-temperature map of an entire star-forming molecular cloud. We find that the column-averaged dust-temperature near the protostar is ~ 17.7 K, while for the starless core it is ~ 10.6K, and that the effect of external heating causes the cloud dust-temperature to rise to ~ 17 K where the hydrogen column density drops below 10^21 cm^-2. The total hydrogen mass of CB244 (assuming a distance of 200 pc) is 15 +/- 5 M_sun. The mass of the protostellar core is 1.6 +/- 0.1 M_sun and the mass of the starless core is 5 +/- 2 M_sun, indicating that ~ 45% of the mass in the globule is participating in the star-formation process.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-05-11T20:36:20.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "herschel observations",
      "isolated star-forming cloud",
      "dust-temperature",
      "starless core",
      "low-mass star-forming bok globule cb244"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1051/0004-6361/201014537",
      "journal": "Astronomy and Astrophysics",
      "year": 2010,
      "month": "Jul",
      "volume": 518
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 855885,
      "adsabs": "2010A&A...518L..87S"
    }
  }
}