Composition, structure, and chemistry of interstellar dustDifferent dust components present in the interstellar medium (IM) such as amorphous carbon, polycyclic aromatic hydrocarbons, and those IM components which are organic refractory grains and icy grain mantles are discussed as well as their relative importance. The physical properties of grain surface chemistry are discussed with attention given to the surface structure of materials, the adsorption energy and residence time of species on a grain surface, and the sticking probability. Consideration is also given to the contribution of grains to the gas-phase composition of molecular clouds.
Document ID
19880027290
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tielens, A. G. G. M. (NASA Ames Research Center Moffett Field; California, University, Berkeley, United States)
Allamandola, L. J. (NASA Ames Research Center Moffett Field, CA, United States)