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Martian ionosphere ...
Martian ionosphere observed by Mars Express. 2. Influence of solar irradiance on upper ionosphere and escape fluxes
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- Dubinin, E. (author)
- Max Planck Inst Solar Syst Res, D-37077 Gottingen, Germany.
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- Fraenz, M. (author)
- Max Planck Inst Solar Syst Res, D-37077 Gottingen, Germany.
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- Paetzold, M. (author)
- Rheinische Inst Umweltforsch, Abt Planetforsch, Cologne, Germany.
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- Andrews, David J. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Vaisberg, O. (author)
- Inst Space Res, Moscow, Russia.
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- Zelenyi, L. (author)
- Inst Space Res, Moscow, Russia.
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- Barabash, S. (author)
- Swedish Inst Space Phys, Kiruna, Sweden.
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Max Planck Inst Solar Syst Res, D-37077 Gottingen, Germany Rheinische Inst Umweltforsch, Abt Planetforsch, Cologne, Germany. (creator_code:org_t)
- PERGAMON-ELSEVIER SCIENCE LTD, 2017
- 2017
- English.
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In: Planetary and Space Science. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0032-0633 .- 1873-5088. ; 145, s. 1-8
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We present multi-instrument observations of the effects of solar irradiance on the upper Martian ionosphere and escape fluxes based on Mars Express measurements obtained over almost 12 years. It is shown that the variations in the upper ionosphere caused by solar irradiance lead to significant changes in the trans-terminator fluxes of low-energy ions and total ion losses through the tail. The observed dependence of the electron number density in the upper ionosphere at altitudes above 300 km on solar irradiance implies that the ionosphere at such altitudes was denser by a factor of ten during the periods of solar maxima in solar cycles 22-23. Correspondingly, the trans terminator fluxes of cold ions and escape fluxes through the tail were also significantly higher. We estimate an increase of total ion losses through the tail during these solar maxima by a factor of 5-6.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Mars
- Solar irradiance
- Ionosphere
- Mars express
- Escape
Publication and Content Type
- ref (subject category)
- art (subject category)
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