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Lower hybrid waves ...
Lower hybrid waves at comet 67P/Churyumov-Gerasimenko
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- André, Mats (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Odelstad, Elias (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Rymd- och plasmafysik
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- Graham, Daniel B. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Eriksson, Anders I. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Karlsson, Tomas, 1964- (author)
- KTH,Rymd- och plasmafysik,Space and Plasma Physics,KTH Royal Inst Technol, Sch Elect Engn, Dept Space & Plasma Phys, Stockholm, Sweden
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- Wieser, G. Stenberg (author)
- Swedish Inst Space Phys, Kiruna, Sweden
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- Vigren, Erik (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Norgren, Cecilia (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Rymd- och plasmafysik
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- Johansson, Fredrik L. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Henri, P. (author)
- Lab Phys & Chim Environm & Espace, Orleans, France
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- Rubin, M. (author)
- Univ Bern, Phys Inst, Bern, Switzerland
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- Richter, I. (author)
- TU Braunschweig, Inst Geophys & Extraterr Phys, Braunschweig, Germany
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(creator_code:org_t)
- 2017-04-10
- 2017
- English.
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In: Monthly notices of the Royal Astronomical Society. - : OXFORD UNIV PRESS. - 0035-8711 .- 1365-2966. ; 469, s. S29-S38
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Abstract
Subject headings
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- We investigate the generation of waves in the lower hybrid frequency range by density gradients in the near plasma environment of comet 67P/Churyumov-Gerasimenko. When the plasma is dominated by water ions from the comet, a situation with magnetized electrons and unmagnetized ions is favourable for the generation of lower hybrid waves. These waves can transfer energy between ions and electrons and reshape the plasma environment of the comet. We consider cometocentric distances out to a few hundred km. We find that when the electron motion is not significantly interrupted by collisions with neutrals, large average gradients within tens of km of the comet, as well as often observed local large density gradients at larger distances, are often likely to be favourable for the generation of lower hybrid waves. Overall, we find that waves in the lower hybrid frequency range are likely to be common in the near plasma environment.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- plasmas
- waves
- comets: general
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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André, Mats
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Odelstad, Elias
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Graham, Daniel B ...
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Eriksson, Anders ...
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Karlsson, Tomas, ...
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Wieser, G. Stenb ...
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show more...
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Vigren, Erik
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Norgren, Cecilia
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Johansson, Fredr ...
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Henri, P.
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Rubin, M.
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Richter, I.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Monthly notices ...
- By the university
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Uppsala University
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Royal Institute of Technology