Mass loading at 67P/Churyumov-Gerasimenko: A case study

Behar, EtienneLuleå tekniska universitet,Institutionen för system- och rymdteknik (author)

Mass loading at 67P/Churyumov-Gerasimenko : A case study

Validerad; 2016; Nivå 2; 20160219 (andbra)
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.

Nilsson, HansLuleå tekniska universitet,Rymdteknik(Swepub:ltu)hannil (author)
Wieser, Gabriella StenbergSwedish Institute of Space Physics (author)
Nemeth, ZoltanWigner Research Centre for Physics, 1121 Konkoly Thege Street 29-33, Budapest (author)
Brolles, T.W.Space Science and Engineering Division, Southwest Research Institute, San Antonio (author)
Richter, IngoTechnische Universität–Braunschweig, Institute for Geophysics and Extraterrestrial Physics (author)
Luleå tekniska universitetInstitutionen för system- och rymdteknik (creator_code:org_t)

By the author/editor: Behar, Etienne; Nilsson, Hans; Wieser, Gabriell ...; Nemeth, Zoltan; Brolles, T.W.; Richter, Ingo

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Aerospace Engine ...

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