Articles | Volume 33, issue 8
https://doi.org/10.5194/angeo-33-1031-2015
https://doi.org/10.5194/angeo-33-1031-2015
ANGEO Communicates
 | Highlight paper
 | 
19 Aug 2015
ANGEO Communicates | Highlight paper |  | 19 Aug 2015

Observation of a new type of low-frequency waves at comet 67P/Churyumov-Gerasimenko

I. Richter, C. Koenders, H.-U. Auster, D. Frühauff, C. Götz, P. Heinisch, C. Perschke, U. Motschmann, B. Stoll, K. Altwegg, J. Burch, C. Carr, E. Cupido, A. Eriksson, P. Henri, R. Goldstein, J.-P. Lebreton, P. Mokashi, Z. Nemeth, H. Nilsson, M. Rubin, K. Szegö, B. T. Tsurutani, C. Vallat, M. Volwerk, and K.-H. Glassmeier

Viewed

Total article views: 4,299 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
3,246 893 160 4,299 118 114
  • HTML: 3,246
  • PDF: 893
  • XML: 160
  • Total: 4,299
  • BibTeX: 118
  • EndNote: 114
Views and downloads (calculated since 19 Aug 2015)
Cumulative views and downloads (calculated since 19 Aug 2015)

Cited

Latest update: 17 Apr 2024
Download
Short summary
We present a first report on magnetic field measurements made in the coma of comet 67P/C-G in its low-activity state. The plasma environment is dominated by quasi-coherent, large-amplitude, compressional magnetic field oscillations around 40mHz, differing from the observations at strongly active comets where waves at the cometary ion gyro-frequencies are the main feature. We propose a cross-field current instability associated with the newborn cometary ions as a possible source mechanism.