MAVEN observations of partially developed Kelvin‐Helmholtz vortices at Mars
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- Suranga Ruhunusiri
- Department of Physics and Astronomy University of Iowa Iowa City Iowa USA
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- J. S. Halekas
- Department of Physics and Astronomy University of Iowa Iowa City Iowa USA
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- J. P. McFadden
- Space Sciences Laboratory University of California Berkeley California USA
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- J. E. P. Connerney
- NASA Goddard Space Flight Center Greenbelt Maryland USA
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- J. R. Espley
- NASA Goddard Space Flight Center Greenbelt Maryland USA
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- Y. Harada
- Space Sciences Laboratory University of California Berkeley California USA
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- R. Livi
- Space Sciences Laboratory University of California Berkeley California USA
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- K. Seki
- Solar‐Terrestrial Environment Laboratory Nagoya University Nagoya Japan
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- C. Mazelle
- CNRS IRAP Toulouse France
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- D. Brain
- Laboratory for Atmospheric and Space Physics University of Colorado Boulder Colorado USA
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- T. Hara
- Space Sciences Laboratory University of California Berkeley California USA
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- G. A. DiBraccio
- NASA Goddard Space Flight Center Greenbelt Maryland USA
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- D. E. Larson
- Space Sciences Laboratory University of California Berkeley California USA
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- D. L. Mitchell
- Space Sciences Laboratory University of California Berkeley California USA
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- B. M. Jakosky
- Laboratory for Atmospheric and Space Physics University of Colorado Boulder Colorado USA
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- H. Hasegawa
- Institute of Space and Astronautical Science JAXA Sagamihara Japan
書誌事項
- 公開日
- 2016-05-24
- 資源種別
- journal article
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/2016gl068926
- 公開者
- American Geophysical Union (AGU)
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説明
<jats:title>Abstract</jats:title><jats:p>We present preliminary results and interpretations for Mars Atmospheric and Volatile EvolutioN (MAVEN) observations of magnetosheath‐ionospheric boundary oscillations at Mars. Using centrifugal force arguments, we first predict that a signature of fully rolled up Kelvin‐Helmholtz vortices at Mars is sheath ions that have a bulk motion toward the Sun. The sheath ions adjacent to a vortex should also accelerate to speeds higher than the mean sheath velocity. We also predict that while the ionospheric ions that are in the vortex accelerate antisunward, they never attain speeds exceeding that of the sheath ions, in stark contrast to KH vortices that arise at the Earth's magnetopause. We observe accelerated sheath and ionospheric ions, but we do not observe sheath ions that have a bulk motion toward the Sun. Thus, we interpret these observations as KH vortices that have not fully rolled up.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 43 (10), 4763-4773, 2016-05-24
American Geophysical Union (AGU)
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詳細情報 詳細情報について
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- CRID
- 1360004229805747328
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- ISSN
- 19448007
- 00948276
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
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