{
  "id": "1301.1830",
  "version": "v1",
  "published": "2013-01-09T12:41:38.000Z",
  "updated": "2013-01-09T12:41:38.000Z",
  "title": "The Effect of an Inert Solid Reservoir on Molecular Abundances in Dense Interstellar Clouds",
  "authors": [
    "Juris Kalvans",
    "Ivar Shmeld"
  ],
  "comment": "8 pages, 6 figures, 1 table. Material initially presented in conference BAASP 2012 at Ventspils University College, May 2012",
  "journal": "Baltic Astronomy, 2012, Vol. 21, p. 447-454",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "The question, what is the role of freeze-out of chemical species in determining the molecular abundances in the interstellar gas is a matter of debate. We investigate a theoretical case of a dense interstellar molecular cloud core by time-dependent modelling of chemical kinetics, where grain surface reactions deliberately are not included. That means, the gas-phase and solid-phase abundances are influenced by gas reactions, accretion on grains, and desorption, only. We compare the results to a reference model, where no accretion occurs and only gas-phase reactions are included. We can trace that the purely physical processes of molecule accretion and desorption have major chemical consequences on the gas-phase chemistry. The main effect of introduction of the gas-grain interaction is long-term molecule abundance changes that come nowhere near an equilibrium in during the typical lifetime of a prestellar core.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-01-09T12:41:38.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "85-04",
      "I.6.5",
      "J.2"
    ],
    "keywords": [
      "dense interstellar clouds",
      "inert solid reservoir",
      "molecular abundances",
      "dense interstellar molecular cloud core",
      "long-term molecule abundance changes"
    ],
    "tags": [
      "conference paper",
      "journal article"
    ],
    "publication": {
      "journal": "Baltic Astronomy",
      "year": 2012,
      "volume": 21,
      "pages": 447
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1209847,
      "adsabs": "2012BaltA..21..447K"
    }
  }
}