Mass dragged from Mars's atmosphere by the solar wind

Details Mass dragged from Mars's atmosphere by the solar wind Mass dragged from Mars's atmosphere by the solar wind

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufm.p32a1066d&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #P32A-1066

Mathematics

Logic

2152 Pickup Ions, 2164 Solar Wind Plasma, 5407 Atmospheres: Evolution, 6225 Mars

Scientific paper

In the past Mars had a denser atmosphere, but it lacks a magnetic field to protect the ionosphere and exosphere from the solar wind. A model describing the loss of atmosphere by the erosion of the solar wind in geologic time is presented. Recent results shows that the Martian dynamo existed in Early and Middle Noachian. Then solar wind erosion would have started at the end of Middle Noachian or the beginning of Late Noachian. With this assumption the amount of volatiles dragged by the solar wind, if the chronology developed by Neukum and Wise is correct, is in the range of 0.472 to 1.89 Terrestrial Atmospheric Masses (TAM). If the chronology developed by Hartmann et al. is correct, the loss remains in the range of 0.0624 to 0.25 TAM.

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