Photochemistry of nitrogen in the Martian atmosphere |
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| Authors: | Darrell F. Strobel Michael B. McElroy |
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| Affiliation: | 1. Center for Earth and Planetary Physics, Harvard University, Cambridge, Massachusetts 02138, USA;2. Naval Research Laboratory, Washington, D.C., USA |
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| Abstract: | Models are developed for the photochemistry of a CO2H2ON2 atmosphere on Mars and estimates are given for the concentrations of N, NO, NO2, NO3, N2O5, HNO2, HNO3, and N2O as a function of altitude. Nitric oxide is the most abundant form of odd nitrogen, present with a mixing ratio relative to CO2 of order 10?8. Deposition rates for nitrite and nitrate minerals could be as large as 3× 105 N equivalent atoms cm?2 sec?1 under present conditions and may have been higher in the past. |
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