Abstract
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.
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References
Charnley, S.B. 1994, in preparation.
Hayashi, C. 1981,Prog. Theor. Phys. Suppl. 70, 35.
Jura, M. & Morris, M. 1985,Ap. J.,292, 487.
Tielens, A.G.G.M. and Allamandola, L.J. 1987, inInterstellar Processes, eds. D.J. Hollenbach & H.A. Thronson Jr., Reidel, p.397.
Umebayashi, T. and Nakano, T. 1988,Prog. Theor. Phys. Suppl. 96, 188.
Umebayashi, T. and Nakano, T. 1990,MNRAS,243, 103.
Yamamoto, T. 1985,A & A,142, 31.
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Charnley, S.B. The interstellar chemistry of protostellar disks. Astrophys Space Sci 224, 441–442 (1995). https://doi.org/10.1007/BF00667895
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DOI: https://doi.org/10.1007/BF00667895