Astrophysics and Space Science

, Volume 224, Issue 1–2, pp 441–442 | Cite as

The interstellar chemistry of protostellar disks

  • S. B. Charnley
Poster Contributions


A study has been undertaken of the gas-grain chemistry of protostellar disks which are sufficiently cool that in the outer regions, where the gas density is less than ∼ 1013 cm−3 and the ionization rate highest, a bimolecular chemistry resembling that of dark clouds can occur. Since the gas-grain collision rate is so high, outgassing mantle molecules effectively determine the gas phase composition at any position in the disk. In contrast to previous work, a detailed gas phase chemistry is considered along with the accretion and desorption of mantle species which is controlled locally by the dust temperature.

Key words

ISM: molecules solar system: formation 


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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • S. B. Charnley
    • 1
    • 2
  1. 1.Astronomy DepartmentUniversity of CaliforniaBerkeleyUSA
  2. 2.Space Science DivisionNASA Ames Research CenterUSA

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