Models of molecular clouds and the abundances of H2CO and HCO/+/
1980; IOP Publishing; Volume: 240; Linguagem: Inglês
10.1086/158258
ISSN1538-4357
AutoresA. Wootten, R. L. Snell, Neal J. Evans,
Tópico(s)Astro and Planetary Science
Resumoview Abstract Citations (87) References (77) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Models of molecular clouds and the abundances of H2CO and HCO/+/ Wootten, A. ; Snell, R. ; Evans, N. J., II Abstract Observations of HCO(+) and H2CO in a sample of 13 molecular clouds have been analyzed by construction of uniform, spherical cloud models. The total densities and the abundance of HCO(+) and H2CO relative to H2 which result from these models fall into two domains: one group of clouds has a low temperature, moderate density, and high abundances; the other group has higher temperature and density, but lower abundances. The factor distinguishing these groups may be depletion onto grains in the denser sources. Publication: The Astrophysical Journal Pub Date: September 1980 DOI: 10.1086/158258 Bibcode: 1980ApJ...240..532W Keywords: Abundance; Astronomical Models; Formaldehyde; Interstellar Matter; Molecular Clouds; Physical Properties; Positive Ions; Radiative Transfer; Astrophysics full text sources ADS |
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