The volume- and surface-binding energies of ice systems containing CO, CO2, and H2O

Details The volume- and surface-binding energies of ice systems containing CO, CO2, and H2O The volume- and surface-binding energies of ice systems containing CO, CO2, and H2O

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...87..188s&link_type=abstract

Icarus (ISSN 0019-1035), vol. 87, Sept. 1990, p. 188-192.

Astronomy and Astrophysics

Astrophysics

63

Astrophysics, Carbon Dioxide, Carbon Monoxide, Ice, Solidified Gases, Chemical Bonds, Ice Formation, Lattice Vibrations, Thermodynamics

Scientific paper

Laboratory-measured, temperature-dependent sticking efficiencies are presently used to derive the surface-binding energies of CO and CO2 on H2O-rich ices, with a view to determining the condensation and vaporization properties of these systems as well as to the measured energies' implications for both cometary behavior and the evolution of interstellar ices. The molecular volume and the surface binding energies are not found to be necessarily related on the basis of simple nearest-neighbor scaling in surface and bulk sites; this may be due to the physical constraints associated with matrix structure-associated physical constraints, which sometimes dominate the volume-binding energies.

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