Other
Scientific paper
Dec 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982sao..reptr....d&link_type=abstract
Semiannual Progress Report, 1 Jul. - 31 Dec. 1982 Smithsonian Astrophysical Observatory, Cambridge, MA.
Other
Absorption Cross Sections, Cometary Atmospheres, Hydroxyl Radicals, Interstellar Gas, Molecular Energy Levels, Photodissociation, Dipole Moments, Electron States, Electron Transitions, Excitation, Potential Energy
Scientific paper
Potential energy curves for the two lowest 2 sigma- states of OH are computed at the configuration-interaction level using four different basis sets. Electronic transition dipole moments connecting the excited 1 2 sigma- and 2(D) 2 sigma- states with each other and with he ground X2pi state are presented as functions of internuclear distance. The theoretical absorption oscillator strengths for the D 2 sigma-(v prime=0) reverser to X 2pi (v prime prime=0) transition are in good agreement with the empirical value derived from astronomical measurements. The photodissociation cross sections for absorption rom the v prime prime=0,1, and levels of the ground state into the continuum of the 1 2 sigma- state are calculated, and the interstellar and cometary photodissociation rates are derived.
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