Mass-loading, pile-up, and mirror-mode waves at comet 67P/Churyumov-Gerasimenko

M. Volwerk, I. Richter, B. Tsurutani, C. Götz, K. Altwegg, T. Broiles, J. Burch, C. Carr, E. Cupido, M. Delva, M. Dósa, N. J T Edberg, A. Eriksson, P. Henri, C. Koenders, J. P. Lebreton, K. E. Mandt, H. Nilsson, A. Opitz, M. RubinK. Schwingenschuh, G. Stenberg Wieser, K. Szegö, C. Vallat, X. Vallieres, K. H. Glassmeier

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The data from all Rosetta plasma consortium instruments and from the ROSINA COPS instrument are used to study the interaction of the solar wind with the outgassing cometary nucleus of 67P/Churyumov-Gerasimenko. During 6 and 7 June 2015, the interaction was first dominated by an increase in the solar wind dynamic pressure, caused by a higher solar wind ion density. This pressure compressed the draped magnetic field around the comet, and the increase in solar wind electrons enhanced the ionization of the outflow gas through collisional ionization. The new ions are picked up by the solar wind magnetic field, and create a ring/ring-beam distribution, which, in a high-β plasma, is unstable for mirror mode wave generation. Two different kinds of mirror modes are observed: one of small size generated by locally ionized water and one of large size generated by ionization and pick-up farther away from the comet.

Original languageEnglish
Pages (from-to)1-15
Number of pages15
JournalAnnales Geophysicae
Volume34
Issue number1
DOIs
Publication statusPublished - Jan 15 2016

Fingerprint

piles
comets
comet
solar wind
pile
mirrors
ionization
magnetic field
plasma
wind pressure
wave generation
dynamic pressure
ion
outgassing
rings
magnetic fields
outflow
interactions
electron
nuclei

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Atmospheric Science
  • Astronomy and Astrophysics
  • Space and Planetary Science
  • Geology

Cite this

Volwerk, M., Richter, I., Tsurutani, B., Götz, C., Altwegg, K., Broiles, T., ... Glassmeier, K. H. (2016). Mass-loading, pile-up, and mirror-mode waves at comet 67P/Churyumov-Gerasimenko. Annales Geophysicae, 34(1), 1-15. https://doi.org/10.5194/angeo-34-1-2016

Mass-loading, pile-up, and mirror-mode waves at comet 67P/Churyumov-Gerasimenko. / Volwerk, M.; Richter, I.; Tsurutani, B.; Götz, C.; Altwegg, K.; Broiles, T.; Burch, J.; Carr, C.; Cupido, E.; Delva, M.; Dósa, M.; Edberg, N. J T; Eriksson, A.; Henri, P.; Koenders, C.; Lebreton, J. P.; Mandt, K. E.; Nilsson, H.; Opitz, A.; Rubin, M.; Schwingenschuh, K.; Stenberg Wieser, G.; Szegö, K.; Vallat, C.; Vallieres, X.; Glassmeier, K. H.

In: Annales Geophysicae, Vol. 34, No. 1, 15.01.2016, p. 1-15.

Research output: Contribution to journalArticle

Volwerk, M, Richter, I, Tsurutani, B, Götz, C, Altwegg, K, Broiles, T, Burch, J, Carr, C, Cupido, E, Delva, M, Dósa, M, Edberg, NJT, Eriksson, A, Henri, P, Koenders, C, Lebreton, JP, Mandt, KE, Nilsson, H, Opitz, A, Rubin, M, Schwingenschuh, K, Stenberg Wieser, G, Szegö, K, Vallat, C, Vallieres, X & Glassmeier, KH 2016, 'Mass-loading, pile-up, and mirror-mode waves at comet 67P/Churyumov-Gerasimenko', Annales Geophysicae, vol. 34, no. 1, pp. 1-15. https://doi.org/10.5194/angeo-34-1-2016
Volwerk M, Richter I, Tsurutani B, Götz C, Altwegg K, Broiles T et al. Mass-loading, pile-up, and mirror-mode waves at comet 67P/Churyumov-Gerasimenko. Annales Geophysicae. 2016 Jan 15;34(1):1-15. https://doi.org/10.5194/angeo-34-1-2016
Volwerk, M. ; Richter, I. ; Tsurutani, B. ; Götz, C. ; Altwegg, K. ; Broiles, T. ; Burch, J. ; Carr, C. ; Cupido, E. ; Delva, M. ; Dósa, M. ; Edberg, N. J T ; Eriksson, A. ; Henri, P. ; Koenders, C. ; Lebreton, J. P. ; Mandt, K. E. ; Nilsson, H. ; Opitz, A. ; Rubin, M. ; Schwingenschuh, K. ; Stenberg Wieser, G. ; Szegö, K. ; Vallat, C. ; Vallieres, X. ; Glassmeier, K. H. / Mass-loading, pile-up, and mirror-mode waves at comet 67P/Churyumov-Gerasimenko. In: Annales Geophysicae. 2016 ; Vol. 34, No. 1. pp. 1-15.
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