Energy transfer of O(1S) atoms in collision with O(3P) atoms |
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Authors: | Jeng-Hwa Yee A Dalgarno |
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Institution: | Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, U.S.A. |
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Abstract: | Elastic scattering and excitation transfer collision cross-sections in O(1S)-O(3P) collisions are calculated. These cross-sections are needed in determining the degree of thermalization of the O(1S) atoms in the nighttime thermosphere. A formula is given for the rate coefficient for the production of an O(1S) atom with a specific energy in collisions involving an O(1S) atom of a given initial energy and the ground state O(3P) atoms of a thermal gas. Effective elastic scattering and excitation transfer cross-sections are defined and calculated to be 1.71 × 10?15 cm2 and 6.67 × 10?16 cm2 respectively at a relative collision energy of 0.41 eV. |
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