Journal articles
Birth of a comet magnetosphere: A spring of water ions
Hans Nilsson
1
G. Stenberg Wieser
1
E. Behar
1
C. S. Wedlund
H. Gunell
2
M. Yamauchi
1
R. Lundin
1
S. Barabash
1
M. Wieser
1
C. Carr
3
Emanuele Cupido
3
James L. Burch
4
A. Fedorov
5
J.-A. Sauvaud
5
H. Koskinen
6
E. Kallio
7
Jean-Pierre Lebreton
8
A. Eriksson
N. Edberg
9
Raymond Goldstein
10
Pierre Henri
8
Christoph Koenders
11
Pat Mokashi
10
Zoltán Nemeth
12
Ingo Richter
11
K. Szego
12
M. Volwerk
13
C. Vallat
14
M. Rubin
15
Hans Nilsson 1
Author Employer institution : Swedish Institute of Space Physics [Kiruna]
G. Stenberg Wieser 1
Author
E. Behar 1
Author
C. S. Wedlund
Author
M. Wieser 1
Author
C. Carr 3
Author
Emanuele Cupido 3
Author Employer institution : Space and Atmospheric Physics Group [London]
James L. Burch 4
Author Employer institution : Southwest Research Institute [San Antonio]
Jean-Pierre Lebreton 8
Author
A. Eriksson
Author
N. Edberg 9
Author
Raymond Goldstein 10
Author Employer institution : Southwest Research Institute [San Antonio]
Pierre Henri 8
Author Employer institution : Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
Christoph Koenders 11
Author Employer institution : Institut für Geophysik und Extraterrestrische Physik [Braunschweig]
Pat Mokashi 10
Author Employer institution : Southwest Research Institute [San Antonio]
Zoltán Nemeth 12
Author Employer institution : Wigner Research Centre for Physics [Budapest]
Ingo Richter 11
Author Employer institution : Institut für Geophysik und Extraterrestrische Physik [Braunschweig]
K. Szego 12
Author
M. Volwerk 13
Author
C. Vallat 14
Author
M. Rubin 15
Author
1
IRF - Swedish Institute of Space Physics [Uppsala] (Box 537 SE-751 21 Uppsala - Sweden)
2
BIRA-IASB - Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (Ringlaan-3-Avenue Circulaire B-1180 Brussels - Belgium)
3
Blackett Laboratory (Prince Consort Road, South Kensington, London SW7 2AZ - United Kingdom)
- Imperial College London (South Kensington Campus, London SW7 2AZ - United Kingdom)
4
Space Science Division [San Antonio] (United States)
- SwRI - Southwest Research Institute [San Antonio] (6220 Culebra Rd, San Antonio, TX 78238 - United States)
5
IRAP - Institut de recherche en astrophysique et planétologie (9 avenue Colonel Roche 31028 Toulouse - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5277 (France)
- OMP - Observatoire Midi-Pyrénées (14 avenue Edouard Belin, 31400 TOULOUSE - France)
- Météo France (Direction interrégionale - Sud-Est, 2 boulevard Château Double, Aix-en-Provence - France)
- CNES - Centre National d'Études Spatiales [Toulouse] (18 avenue Edouard Belin 31401 Toulouse - France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- CNRS - Centre National de la Recherche Scientifique : UAR 831 (France)
- IRD - Institut de Recherche pour le Développement (Siège Le Sextant 44, bd de Dunkerque CS 90009 13572 Marseille cedex 02 - France)
- UT3 - Université Toulouse III - Paul Sabatier (118 route de Narbonne - 31062 Toulouse - France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UMR5277 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
6
FMI - Finnish Meteorological Institute (Erik Palmenin aukio 1, P.O. Box 503, 00 101 Helsinki, Finland - Finland)
7
School of Electrical Engineering [Aalto Univ] (Aalto University Foundation sr
FI-00076 Aalto, Finland - Finland)
- A? - Aalto University (P.O. Box 11000, FI-00076 Aalto - Finland)
8
LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (3A, Avenue de la Recherche Scientifique 45071 Orléans cedex 2 - France)
- OSUC - Observatoire des Sciences de l'Univers en région Centre : UMS3116 (Campus Géosciences, 1A rue de la Férollerie, 45071 Orléans - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- Observatoire de Paris (61 Av de l'Observatoire 75014 PARIS - France)
- PSL - Université Paris sciences et lettres (60 rue Mazarine 75006 Paris - France)
- UO - Université d'Orléans (Château de la Source - Avenue du Parc Floral - BP 6749 - 45067 Orléans cedex 2 - France)
- CNRS - Centre National de la Recherche Scientifique : UMS3116 (France)
- CNES - Centre National d’Études Spatiales [Paris] : UMR 7328 (Siège social : 2 place Maurice Quentin, 75039 Paris - France)
9
IRF - Swedish Institute of Space Physics [Kiruna] (Rymdcampus, 981 28 Kiruna - Sweden)
10
SwRI - Southwest Research Institute [San Antonio] (6220 Culebra Rd, San Antonio, TX 78238 - United States)
11
Technische Universität Braunschweig [Braunschweig] (38092 Braunschweig - Germany)
12
Wigner Research Centre for Physics [Budapest] (1121 Budapest
Konkoly-Thege Miklós út 29-33. - Hungary)
- MTA - Hungarian Academy of Sciences (Széchenyi István sqr. 9, 1051 Budapest - Hungary)
13
OeAW - Austrian Academy of Sciences (Doktor-Ignaz-Seipel-Platz 2, 1010 Wien - Austria)
14
European Space Astronomy Centre - Rosetta Science Ground Segment (Spain)
- ESA - European Space Agency (France)
15
Physikalisches Institut [Bern] (Sidlerstr. 5, 3012 Bern - Switzerland)
- Universität Bern [Bern] (Hochschulstrasse 4 - CH-3012 Bern - Switzerland)
Abstract : The Rosetta mission shall accompany comet 67P/Churyumov-Gerasimenko from a heliocentric distance of >3.6 astronomical units through perihelion passage at 1.25 astronomical units, spanning low and maximum activity levels. Initially, the solar wind permeates the thin comet atmosphere formed from sublimation, until the size and plasma pressure of the ionized atmosphere define its boundaries: A magnetosphere is born. Using the Rosetta Plasma Consortium ion composition analyzer, we trace the evolution from the first detection of water ions to when the atmosphere begins repelling the solar wind (similar to 3.3 astronomical units), and we report the spatial structure of this early interaction. The near-comet water population comprises accelerated ions (<800 electron volts), produced upstream of Rosetta, and lower energy locally produced ions; we estimate the fluxes of both ion species and energetic neutral atoms.
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https://hal-insu.archives-ouvertes.fr/insu-01256291
Contributor : Nathalie Pothier <>
Submitted on : Thursday, November 28, 2019 - 12:53:44 PM
Last modification on : Monday, April 5, 2021 - 2:26:15 PM
Long-term archiving on: : Saturday, February 29, 2020 - 4:30:19 PM
Contributor : Nathalie Pothier <>
Submitted on : Thursday, November 28, 2019 - 12:53:44 PM
Last modification on : Monday, April 5, 2021 - 2:26:15 PM
Long-term archiving on: : Saturday, February 29, 2020 - 4:30:19 PM
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- HAL Id : insu-01256291, version 1
- DOI : 10.1126/science.aaa0571
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Hans Nilsson, G. Stenberg Wieser, E. Behar, C. S. Wedlund, H. Gunell, et al.. Birth of a comet magnetosphere: A spring of water ions. Science, American Association for the Advancement of Science, 2015, 347 (6220), pp.aaa0571. ⟨10.1126/science.aaa0571⟩. ⟨insu-01256291⟩
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