The dissociation of OH and OD in comets by solar radiation

Details The dissociation of OH and OD in comets by solar radiation The dissociation of OH and OD in comets by solar radiation

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984icar...59..305v&link_type=abstract

Icarus (ISSN 0019-1035), vol. 59, Sept. 1984, p. 305-313. Research supported by the Nederlandse Organisatie voor Zuiver-Wetensch

Computer Science

75

Cometary Atmospheres, Hydroxyl Radicals, Photodissociation, Solar Radiation, Metastable Atoms, Oxygen Atoms, Velocity Distribution, Comets, Solar Radiation, Photodissociation, Chemistry, Hyroxyl Radical, Calculations, Velocity, Distribution, Distance, Absorption, Models, Observations, Comparisons, Parent Molecules, Element Ratios, Energy, Data, Oxygen

Scientific paper

The radiative lifetimes of cometary OH are calculated as a function of the heliocentric velocity of the comet and the velocity distributions of the product atoms are determined. At a distance of 1 AU from the Sun, the lifetimes vary between 1.2×105 and 1.9×105 sec at solar minimum and between 1.0×105 and 1.4×105 sec at solar maximum, depending upon velocity. The calculated lifetimes are generally consistent with the lifetimes inferred from observations, but suggest that some elaboration of the models is necessary.

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