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Momentum transfer collision frequency of O + ‐O
Author(s) -
Pesnell W. Dean,
Omidvar Kazem,
Hoegy Walter R.
Publication year - 1993
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/93gl01597
Subject(s) - thermosphere , atomic physics , physics , ionosphere , momentum transfer , ion , polarization (electrochemistry) , collision , venus , charge exchange , charge (physics) , quadrupole , nuclear physics , scattering , chemistry , astrobiology , geophysics , quantum mechanics , computer security , computer science
The interaction of the thermosphere and ionosphere is largely governed by collisions between ions and neutral particles. On Venus and the Earth, O + is a dominant ion, and atomic O dominates throughout much of the thermosphere; therefore an accurate O + ‐O cross section is an important prerequisite for understanding the dynamics of planetary upper atmospheres. The cross section and momentum, transfer collision frequency are calculated with a quantum mechanical code which includes resonance charge exchange, polarization, and charge‐quadrupole effects. Our results agree well with earlier calculations of Stubbe [1968] and Stallcop et al [1991].