Control of ion loss from Mars during solar minimum

被引：0
作者：
Stephen H. Brecht
Stephen A. Ledvina
机构：
[1] Bay Area Research Corp.,Space Sciences Laboratory
[2] UC Berkeley,undefined
来源：
Earth, Planets and Space | 2012年 / 64卷
关键词：
Mars; ionospheric loss; crustal magnetic fields; simulation; solar wind interactions;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A hybrid particle code has been used to examine the interaction of the solar wind with Mars during solar minimum. The results were surprising as they produced ion loss rates from Mars far in excess of what is estimated from MEX. The results are analyzed and found to be consistent with the competition between photochemical rates and advection of the ionosphere. The simulations showed significant erosion of the ionosphere at altitudes between 200 km and 250 km altitudes. Addition of the crustal magnetic fields reduced the erosion and reduced the ion loss rates to a level consistent with the data.
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页码：165 / 178
页数：13
相关论文
共 299 条
  • [1] Acuña M(1998)Magnetic field and plasma observations at Mars: initial results of the Mars Global Surveyor mission Science 279 1676-793
  • [2] Acuña MH(1999)Global distribution of crustal magnetization discovered by the Mars Global Surveyor MAG/ER experiment Science 284 790-503
  • [3] Connerney JEP(2007)Martian atmospheric erosion rates Science 315 501-1514
  • [4] Ness NF(2004)Plasma boundaries at Mars: a 3-D simulation study Ann. Geophys 22 4363-151
  • [5] Lin RP(1988)Mars thermospheric general circulation model—Calculations for the arrival of PHOBOS at Mars Geophys. Res. Lett 15 1511-173
  • [6] Mitchell D(2010)A comparison of global models for the solar wind interaction with Mars Icarus 206 139-7353
  • [7] Carlson CW(1990)Magnetic asymmetry of unmagnetized planets Geophys. Res. Lett 17 1243-94
  • [8] McFadden J(1997a)Solar wind proton deposition into the Martian Atmosphere J. Geophys. Res 102 287-189
  • [9] Anderson KA(1997b)Hybrid simulations of the magnetic topology of Mars J. Geophys. Res 102 4743-1062
  • [10] Rème H(1991)Global hybrid simulation of unmagnetized planets: Comparison of Venus and Mars J. Geophys. Res 96 11209-2172
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