The escape rate of nitrogen from Mars is calculated to be 2.3×105 s−1 for low solar flux conditions and 8.9×105 s−1 for high solar flux conditions. The major source of energetic atoms is dissociative recombination of ground state and vibrationally excited N2+ ions. The measured 15N/14N isotope ratio can be reproduced by postulating an early dense atmosphere during which little differentiation occurred.
Fox, J. L.,
& Dalgarno, A.
(1983). Nitrogen Escape from Mars. Journal of Geophysical Research: Space Physics, 88 (A11), 9027-9032.
Copyright © 1983 by the American Geophysical Union.
The following article appeared in the Journal of Geophysical Research: Space Physics 88(A11), and may be found at http://onlinelibrary.wiley.com/doi/10.1029/JA088iA11p09027/full
Permission to Deposit an Article in an Institutional Repository:
Adopted by Council 13 December 2009.
AGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU.