Abstract
view Abstract Citations (82) References (33) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Formation of molecules on small interstellar grains. Allen, M. ; Robinson, G. W. Abstract A model is proposed for the formation of molecules on small interstellar grains. It is suggested that the energy liberated when a chemical bond is formed between two atoms on a grain is transferred to the lattice vibrations of the grain, heating up the grain. The 'hot' grain, during the time that it is radiatively recooling, may then liberate its adsorbed volatiles. The time scales for molecular desorption from a grain are calculated for OH and CO for four different grain compositions. The results provide some tentative explanations of astronomical observations. Publication: The Astrophysical Journal Pub Date: January 1975 DOI: 10.1086/153306 Bibcode: 1975ApJ...195...81A Keywords: Astronomical Models; Interstellar Matter; Radiant Cooling; Carbon Monoxide; Chemical Bonds; Chemical Reactions; Desorption; Energy Dissipation; Hydroxyl Emission; Astrophysics full text sources ADS |
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