dc.creator Herbst, E. en_US dc.creator Hasegawa, T. I. en_US dc.date.accessioned 2006-06-15T15:11:49Z dc.date.available 2006-06-15T15:11:49Z dc.date.issued 1992 en_US dc.identifier 1992-MH-09 en_US dc.identifier.uri http://hdl.handle.net/1811/12725 dc.description 1. T.I. Hasegawa, E. Herbst, and C.M. Leung, Astrophys. J. Suppl., in press. en_US dc.description Author Institution: Department of Physics, The Ohio State University en_US dc.description.abstract In the last decade, IR observations of dense interstellar clouds have been used to detect both gas phase molecules and molecules in the mantles of dust particles. While the gas phase molecules can be studied via high resolution spectroscopic techniques, the mantle material can only be studied via low resolution. Nevertheless, the low resolution spectral features can be assigned with varying degrees of certainty. We have recently undertaken model calculations of both the gas phase and grain surface chemistry of dense interstellar clouds with a goal of predicting molecular abundances in grain $mantles^{1}$. The calculated mantle abundances compare favorably with those determined from selected low resolution observations of interstellar clouds and demonstrate that both gas phase syntheses followed by adsorption onto the dust particles and syntheses occuring on grain surfaces contribute to mantle molecular abundance. New results in which non-thermal desorption mechanisms are included in the model will be presented. en_US dc.format.extent 99725 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title GRAIN MANTLE COMPOSITION IN INTERSTELLAR CLOUDS: PROSPECTS FOR INFRARED SPECTROSCOPY en_US dc.type article en_US
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