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Mass loading at 67P/Churyumov-Gerasimenko: A case study
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology.
Swedish Institute of Space Physics.
Wigner Research Centre for Physics, 1121 Konkoly Thege Street 29-33, Budapest.
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2016 (English)In: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 43, no 4, 1411-1418 p.Article in journal (Refereed) Published
Abstract [en]

We study the dynamics of the interaction between the solar wind ions and a partially ionized atmosphere around a comet, at a distance of 2.88 AU from the Sun during a period of low nucleus activity. Comparing particle data and magnetic field data for a case study, we highlight the prime role of the solar wind electric field in the cometary ion dynamics. Cometary ion and solar wind proton flow directions evolve in a correlated manner, as expected from the theory of mass loading. We find that the main component of the accelerated cometary ion flow direction is along the antisunward direction and not along the convective electric field direction. This is interpreted as the effect of an antisunward polarization electric field adding up to the solar wind convective electric field.

Place, publisher, year, edition, pages
2016. Vol. 43, no 4, 1411-1418 p.
National Category
Aerospace Engineering
Research subject
Atmospheric science
Identifiers
URN: urn:nbn:se:ltu:diva-8286DOI: 10.1002/2015GL067436ISI: 000373109000001Local ID: 6c6ac809-0b7a-4666-8ba3-4712cf4ebf06OAI: oai:DiVA.org:ltu-8286DiVA: diva2:981178
Note

Validerad; 2016; Nivå 2; 20160219 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-10-19Bibliographically approved

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