{
  "id": "1407.3135",
  "version": "v1",
  "published": "2014-07-11T12:42:13.000Z",
  "updated": "2014-07-11T12:42:13.000Z",
  "title": "H$_{2}$O Maser Pumping: The Effect of Quasi-Resonance Energy Transfer in Collisions between H$_2$ and H$_2$O Molecules",
  "authors": [
    "A. V. Nesterenok",
    "D. A. Varshalovich"
  ],
  "comment": "arXiv admin note: text overlap with arXiv:1309.7547",
  "journal": "Published in Astronomy Letters, 2014, Vol. 40, No.7, pp. 425-434",
  "doi": "10.1134/S1063773714070068",
  "categories": [
    "astro-ph.HE",
    "astro-ph.GA"
  ],
  "abstract": "The effect of quasi-resonance energy transfer in collisions between H$_2$ and H$_2$O molecules in H$_2$O maser sources is investigated. New data on the state-to-state rate coefficients for collisional transitions for H$_2$O and H$_2$ molecules are used in the calculations. The results of ortho-H$_2$O level population inversion calculations for the 22.2-, 380-, 439-, and 621-GHz transitions are presented. The ortho-H$_2$O level population inversion is shown to depend significantly on the population distribution of the para-H$_2$ $J = 0$ and $2$ rotational levels. The possibility of quasi-resonance energy transfer in collisions between H$_2$ molecules at highly excited rotational-vibrational levels and H$_2$O molecules is considered. The quasi-resonance energy transfer effect can play a significant role in pumping H$_2$O masers in the central regions of active galactic nuclei and in star-forming regions.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-07-11T12:42:13.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "collisions",
      "maser pumping",
      "quasi-resonance energy transfer effect",
      "level population inversion calculations",
      "state-to-state rate coefficients"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Astronomy Letters",
      "year": 2014,
      "month": "Jul",
      "volume": 40,
      "number": 7,
      "pages": 425
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1305876,
      "adsabs": "2014AstL...40..425N"
    }
  }
}