Solar wind dynamics around a comet

@article{Saillenfest2018SolarWD,
  title={Solar wind dynamics around a comet},
  author={Melaine Saillenfest and Beno{\^i}t Tabone and Etienne Behar},
  journal={Astronomy \& Astrophysics},
  year={2018}
}
Aims. Observations of solar protons near comet 67P/Churyumov–Gerasimenko (67P) by the Rosetta spacecraft can be modelled by the planar motion in an effective magnetic field proportional to 1/r2. We aim to provide a thorough study of such dynamics, with a clear description of the behaviour of an incoming flux of particles. We will be able, then, to calibrate the free parameters of the model to Rosetta observations. Methods. Basic tools of dynamical analysis are used. They lead to a definition of… Expand
Solar wind dynamics around a comet
Aims. We aim at analytically modelling the solar wind proton trajectories during their interaction with a partially ionised cometary atmosphere, not in terms of bulk properties of the flow but inExpand
The root of a comet tail: Rosetta ion observations at comet 67P/Churyumov–Gerasimenko
Context. The first 1000 km of the ion tail of comet 67P/Churyumov–Gerasimenko were explored by the European Rosetta spacecraft, 2.7 au away from the Sun. Aims. We characterised the dynamics of bothExpand
Hybrid modeling of cometary plasma environments
Context. The ESA Rosetta probe has not seen direct evidence of a fully formed bow shock at comet 67P/Churyumov–Gerasimenko (67P). Ion spectrometer measurements of cometary pickup ions measured in theExpand
Solar wind charge exchange in cometary atmospheres
Context. Solar wind charge-changing reactions are of paramount importance to the physico-chemistry of the atmosphere of a comet because they mass-load the solar wind through an effective conversionExpand

References

SHOWING 1-10 OF 27 REFERENCES
Solar wind dynamics around a comet
Aims. We aim at analytically modelling the solar wind proton trajectories during their interaction with a partially ionised cometary atmosphere, not in terms of bulk properties of the flow but inExpand
The root of a comet tail: Rosetta ion observations at comet 67P/Churyumov–Gerasimenko
Context. The first 1000 km of the ion tail of comet 67P/Churyumov–Gerasimenko were explored by the European Rosetta spacecraft, 2.7 au away from the Sun. Aims. We characterised the dynamics of bothExpand
ICE observations of Comet Giacobini-Zinner
  • S. Cowley
  • Physics, Computer Science
  • Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
  • 1987
TLDR
Large-scale mhd aspects of the interaction largely conform to prior expectation, and an unexpected feature ofThe interaction was the extreme levels of field and plasma turbulence, and broadband wave activity observed in the region of massloaded flow. Expand
The Plasma Environment of Comet 67P/Churyumov-Gerasimenko Throughout the Rosetta Main Mission
The plasma environment of comet 67P/Churyumov-Gerasimenko, the Rosetta mission target comet, is explored over a range of heliocentric distances throughout the mission: 3.25 AU (Rosetta instrumentsExpand
COMET 1P/HALLEY MULTIFLUID MHD MODEL FOR THE GIOTTO FLY-BY
The interaction of comets with the solar wind has been the focus of many studies including numerical modeling. We compare the results of our multifluid MHD simulation of comet 1P/Halley to dataExpand
Low-frequency waves at comet 67P/Churyumov-Gerasimenko - Observations compared to numerical simulations
Context. A new type of low-frequency wave was detected by the magnetometer of the Rosetta Plasma Consortium at the comet during the initial months after the arrival of the Rosetta spacecraft at cometExpand
Plasma environment of a weak comet - Predictions for Comet 67P/Churyumov-Gerasimenko from multifluid-MHD and Hybrid models
The interaction of a comet with the solar wind undergoes various stages as the comet’s activity varies along its orbit. For a comet like 67P/Churyumov–Gerasimenko, the target comet of ESA’s RosettaExpand
Hall effect in the coma of 67P/Churyumov–Gerasimenko
Magnetohydrodynamics simulations have been carried out in studying the solar wind and cometary plasma interactions for decades. Various plasma boundaries have been simulated and compared well withExpand
Revisiting cometary bow shock positions
The Rosetta spacecraft will arrive at comet 67P/Churyumov–Gerasimenko in 2014 and will escort the comet along its journey around the Sun. The predicted outgassing rate of the comet and the solar windExpand
Electron and Ion Dynamics of the Solar Wind Interaction with a Weakly Outgassing Comet.
TLDR
Using a 3D fully kinetic approach, the ion and electron dynamics of the solar wind interaction with a weakly outgassing comet are disentangled and it is concluded that a detailed kinetic treatment of the electron dynamics is critical to fully capture the complex physics of mass-loading plasmas. Expand
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