Kinetic effects on ion escape at Mars and Venus: Hybrid modeling studies
نویسندگان
چکیده
منابع مشابه
Ion escape fluxes from Mars
[1] A 3D, multi-species, non-ideal MHD numerical code was used to calculate the ion escape fluxes from Mars. The calculations were carried out for six cases with different nominal solar wind, solar cycle and crustal field orientation conditions and the total escape fluxes (the sum of the three major ionospheric species, O, O2 , and CO2 ) varied by about an order of magnitude from 2.7 10 to 2.4 ...
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Increased computer capacity has made it possible to model the global plasma and neutral dynamics near Venus, Mars and Saturn’s moon Titan. The plasma interactions at Venus, Mars, and Titan are similar because each possess a substantial atmosphere but lacks a global internally generated magnetic field. In this article three self-consistent plasma models are described: the magnetohydrodynamic (MH...
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[1] We present results from the Mars Test Particle (MTP) simulation as part of a community-wide model comparison in order to quantify the role of different neutral atmospheric conditions in planetary ion transport and escape. This study examines the effects of individual ion motion by simulating particle trajectories for three cases: solar minimum without the neutral corona, solar minimum with ...
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Introduction: Several mechanisms have been identified to result in escape of the Martian atmosphere. These mechanisms can be divided in two groups [1]: • Thermal escape or Jeans escape, which corresponds to the loss of atoms in the high energy tail of the energy distribution at the exobase. This mechanism is important only for the light species such as hydrogen or deuterium. • Non-thermal escap...
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ژورنال
عنوان ژورنال: Earth, Planets and Space
سال: 2012
ISSN: 1343-8832,1880-5981
DOI: 10.5047/eps.2011.08.014