The depletion of the solar wind near Mars

H. Lichtenegger; E. Dubinin; W. H. Ip

doi:10.1016/S0273-1177(97)00524-3

The depletion of the solar wind near Mars

H. Lichtenegger, E. Dubinin, W. H. Ip

Graduate Institute of Astronomy

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3 Scopus citations

Abstract

The absorption of the solar wind by the martian atmosphere via charge exchange is investigated for three processes: H⁺+O → H+O⁺, H⁺+H → H+H⁺ and He⁺⁺+He → He⁺+He⁺. It is shown that the first process can lead to a significant depletion of the solar wind in a small region above the subsolar space, while the effect of the other two processes is of minor importance. Further we find that He⁺ ions created by charge exchange play no role in the total He⁺ outflow at Mars. Finally the flux of O⁺ ions is considered and compared with Phobos-2 measurements.

Original language	English
Pages (from-to)	143-147
Number of pages	5
Journal	Advances in Space Research
Volume	20
Issue number	2
DOIs	https://doi.org/10.1016/S0273-1177(97)00524-3
State	Published - 1997

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abstract = "The absorption of the solar wind by the martian atmosphere via charge exchange is investigated for three processes: H++O → H+O+, H++H → H+H+ and He+++He → He++He+. It is shown that the first process can lead to a significant depletion of the solar wind in a small region above the subsolar space, while the effect of the other two processes is of minor importance. Further we find that He+ ions created by charge exchange play no role in the total He+ outflow at Mars. Finally the flux of O+ ions is considered and compared with Phobos-2 measurements.",

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T1 - The depletion of the solar wind near Mars

AU - Lichtenegger, H.

AU - Dubinin, E.

AU - Ip, W. H.

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N2 - The absorption of the solar wind by the martian atmosphere via charge exchange is investigated for three processes: H++O → H+O+, H++H → H+H+ and He+++He → He++He+. It is shown that the first process can lead to a significant depletion of the solar wind in a small region above the subsolar space, while the effect of the other two processes is of minor importance. Further we find that He+ ions created by charge exchange play no role in the total He+ outflow at Mars. Finally the flux of O+ ions is considered and compared with Phobos-2 measurements.

AB - The absorption of the solar wind by the martian atmosphere via charge exchange is investigated for three processes: H++O → H+O+, H++H → H+H+ and He+++He → He++He+. It is shown that the first process can lead to a significant depletion of the solar wind in a small region above the subsolar space, while the effect of the other two processes is of minor importance. Further we find that He+ ions created by charge exchange play no role in the total He+ outflow at Mars. Finally the flux of O+ ions is considered and compared with Phobos-2 measurements.

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U2 - 10.1016/S0273-1177(97)00524-3

DO - 10.1016/S0273-1177(97)00524-3

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EP - 147

JO - Advances in Space Research

JF - Advances in Space Research

IS - 2

ER -

The depletion of the solar wind near Mars

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