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Conference papers

Localised plasma density enhancements around comet CG/67P

Pierre Henri 1 T. Broiles 2 A. Eriksson 3 Christian Béghin 1 J.P. Lebreton 3 X. Vallieres 4 Jérome More 1 Gaétan Wattieaux 5 Ilka A.D. Engelhardt 3 N. Edberg 3 Elias Odelstad 3 Erik Vigren 3 Karl-Heinz Glassmeier 6 Charlotte Goetz 6 Christoph Koenders 6 Ingo Richter 6 M. Volwerk 7 James L. Burch 2 Raymond Goldstein 8 Kathleen Mandt 8 Hans Nilsson 3 G. Stenberg Wieser 3 Zoltán Nemeth 9 K. Szegoe 9 Chris Carr 10 C. Vallat 11
1 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
2 Space Science Division [San Antonio]
3 IRF - Swedish Institute of Space Physics [Uppsala]
4 Technical University of Braunschweig
5 LAPLACE - LAboratoire PLasma et Conversion d'Energie
6 Technische Universität Braunschweig [Braunschweig]
7 IWF - Space Research Institute of Austrian Academy of Sciences
8 SwRI - Southwest Research Institute [San Antonio]
9 Wigner Research Centre for Physics [Budapest]
10 Blackett Laboratory
11 European Space Astronomy Centre - Rosetta Science Ground Segment
Abstract : Comet 67P/Churyumov-Gerasimenko, target of the ESA’s Rosetta mission, reached its perihelion at 1.3 AU from the Sun in August 2015. Its plasma environment will go on being monitored by the Rosetta Plasma Consortium (RPC) as the distance to the sun increases, until end of mission in September 2016. Combining observations from the different RPC sensors, we investigate localised, strong enhancements of the cometary plasma density over short timescales (- minutes to seconds) observed during the period April 2015 - January 2016. These strong plasma density variations (RPC-MIP and RPC-LAP) are likely associated to cold electrons (RPC-IES) and generally observed during magnetic field rotations (RPC-MAG). The location of such events, both in the rotating comet frame and with regard to the magnetic field direction, is discussed to better constrain the mechanism at the origin of these localised plasma density enhancements
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Conference papers
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https://hal-insu.archives-ouvertes.fr/insu-01452632
Contributor : Nathalie Rouchon <>
Submitted on : Thursday, February 2, 2017 - 9:39:41 AM
Last modification on : Wednesday, September 23, 2020 - 4:37:58 AM

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  • HAL Id : insu-01452632, version 1

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INSU | CNRS | UNIV-ORLEANS | OSUC | LPC2E | OBSPM | UNIV-TLSE3 | LAPLACE | PSL

Citation

Pierre Henri, T. Broiles, A. Eriksson, Christian Béghin, J.P. Lebreton, et al.. Localised plasma density enhancements around comet CG/67P. EGU General Assembly 2016, Apr 2016, Vienne, Austria. pp.Poster. ⟨insu-01452632⟩

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