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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.ORCID iD: 0000-0003-0177-510X
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, p. 1411-1418Article 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, p. 1411-1418
National Category
Aerospace Engineering
Research subject
Atmospheric science
Identifiers
URN: urn:nbn:se:ltu:diva-8286DOI: 10.1002/2015GL067436ISI: 000373109000001Scopus ID: 2-s2.0-84975743627Local ID: 6c6ac809-0b7a-4666-8ba3-4712cf4ebf06OAI: oai:DiVA.org:ltu-8286DiVA, id: diva2:981178
Note

Validerad; 2016; Nivå 2; 20160219 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
In thesis
1. The dynamics of the solar wind in the atmosphere of comet 67P/Churyumov-Gerasimenko
Open this publication in new window or tab >>The dynamics of the solar wind in the atmosphere of comet 67P/Churyumov-Gerasimenko
2018 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Luleå University of Technology, 2018
Series
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
National Category
Fusion, Plasma and Space Physics Aerospace Engineering
Research subject
Atmospheric science
Identifiers
urn:nbn:se:ltu:diva-68785 (URN)978-91-7790-156-3 (ISBN)978-91-7790-157-0 (ISBN)
Public defence
2018-10-12, Aula, IRF, Kiruna, 08:16 (English)
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Available from: 2018-05-21 Created: 2018-05-18 Last updated: 2018-09-25Bibliographically approved

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