Journal articles
Ion composition at comet 67P near perihelion: Rosetta observations and model-based interpretation
Kevin L. Heritier
1
Kathrin Altwegg
2
Hans Balsiger
2
Jean-Jacques Berthelier
3
Arnaud Beth
1
André Bieler
2
Nicolas Biver
4
Ursina Calmonte
2
Michael R. Combi
5
Johan de Keyser
6
Anders I. Eriksson
7
Björn Fiethe
8
Nicolas Fougere
5
Stephen Fuselier
9, 10
Marina Galand
1
Sebastien Gasc
2
Tamas I. Gombosi
5
Kenneth C. Hansen
5
Myrtha Hassig
2, 9
Ernest Kopp
2
Elias Odelstad
7
Martin Rubin
2
Chia-Yu Tzou
2
Erik Vigren
7
Véronique Vuitton
11
Kevin L. Heritier 1
Author
Kathrin Altwegg 2
Author
Hans Balsiger 2
Author
Jean-Jacques Berthelier 3
Author
Michael R. Combi 5
Author
Johan de Keyser 6
Author
Anders I. Eriksson 7
Author
Björn Fiethe 8
Author
Nicolas Fougere 5
Author
Stephen Fuselier 9, 10
Author
Marina Galand 1
Author
Sebastien Gasc 2
Author
Véronique Vuitton 11
Author IdHAL : veronique-vuitton ORCID : https://orcid.org/0000-0001-7273-1898
1
Department of Physics [Imperial College London] (United Kingdom)
- Imperial College London (South Kensington Campus, London SW7 2AZ - United Kingdom)
2
Physikalisches Institut [Bern] (Sidlerstr. 5, 3012 Bern - Switzerland)
- Universität Bern [Bern] (Hochschulstrasse 4 - CH-3012 Bern - Switzerland)
3
PLANETO - LATMOS (France)
- LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales (11 boulevard d'Alembert
Quartier des Garennes
78280 - Guyancourt - France)
- UVSQ - Université de Versailles Saint-Quentin-en-Yvelines : UMR8190 (55 avenue de Paris - 78035 Versailles cedex - France)
- UPMC - Université Pierre et Marie Curie - Paris 6 : UMR8190 (4 place Jussieu - 75005 Paris - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UMR8190 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8190 (France)
4
LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique (5, place Jules Janssen 92190 MEUDON - France)
- UPMC - Université Pierre et Marie Curie - Paris 6 (4 place Jussieu - 75005 Paris - 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)
- UPD7 - Université Paris Diderot - Paris 7 (5 rue Thomas-Mann - 75205 Paris cedex 13 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8109 (France)
5
AOSS - Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor] (Ann Arbor, MI 48109 - United States)
- University of Michigan [Ann Arbor] (500 Church Street Ann Arbor, MI 48109-1090 - United States)
- University of Michigan System (Michigan - United States)
6
BIRA-IASB - Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (Ringlaan-3-Avenue Circulaire B-1180 Brussels - Belgium)
7
IRF - Swedish Institute of Space Physics [Uppsala] (Box 537 SE-751 21 Uppsala - Sweden)
8
IDA - Institute of Computer and Network Engineering [Braunschweig] (Hans-Sommer-Street 66, 38106 Braunschweig - Germany)
- Technische Universität Braunschweig [Braunschweig] (38092 Braunschweig - Germany)
9
Space Science and Engineering Division [San Antonio] (San Antonio, TX 78238 - United States)
- SwRI - Southwest Research Institute [San Antonio] (6220 Culebra Rd, San Antonio, TX 78238 - United States)
10
UTSA - The University of Texas at San Antonio (1 UTSA Circle, San Antonio, TX 78249 - United States)
11
IPAG - Institut de Planétologie et d'Astrophysique de Grenoble (414, Rue de la Piscine BP 53 38041 Grenoble Cedex 9 - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNES - Centre National d'Études Spatiales [Toulouse] (18 avenue Edouard Belin 31401 Toulouse - France)
- CNRS - Centre National de la Recherche Scientifique (France)
- OSUG - Observatoire des Sciences de l'Univers de Grenoble (414 Rue de la piscine - BP 53 38041 GRENOBLE CEDEX 9 - France)
- Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- IRSTEA - Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (France)
- USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc (27, rue Marcoz - 73000 Chambéry - France)
- CNRS - Centre National de la Recherche Scientifique : UMS832 (France)
- UGA [2016-2019] - Université Grenoble Alpes [2016-2019] (CS 40700 - 38058 Grenoble cedex - France)
Abstract : We present the ion composition in the coma of comet 67P with newly detected ion species over the 28 to 37 u mass range, probed by Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA)/Double Focusing Mass Spectrometer (DFMS). In summer 2015, the nucleus reached its highest outgassing rate and ion-neutral reactions started to take place at low cometocentric distances. Minor neutrals can efficiently capture protons from the ion population, making the protonated version of these neutrals a major ion species. So far, only
NH>sup>+4 has been reported at comet 67P. However, there are additional neutral species with proton affinities higher than that of water (besides NH3) that have been detected in the coma of comet 67P: CH3OH, HCN, H2CO and H2S. Their protonated versions have all been detected. Statistics showing the number of detections with respect to the number of scans are presented. The effect of the negative spacecraft potential probed by the Rosetta Plasma Consortium (RPC)/LAngmuir Probe (LAP) on ion detection is assessed. An ionospheric model has been developed to assess the different ion density profiles and compare them to the ROSINA/DFMS measurements. It is also used to interpret the ROSINA/DFMS observations when different ion species have similar masses, and their respective densities are not high enough to disentangle them using the ROSINA/DFMS high resolution mode. The different ion species that have been reported in the coma of 67P are summarised and compared with the ions detected at comet 1P/Halley during the Giotto mission.
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-01575071
Contributor : Catherine Cardon <>
Submitted on : Friday, November 13, 2020 - 2:38:15 PM
Last modification on : Wednesday, April 14, 2021 - 3:39:37 AM
Long-term archiving on: : Sunday, February 14, 2021 - 7:06:07 PM
Contributor : Catherine Cardon <>
Submitted on : Friday, November 13, 2020 - 2:38:15 PM
Last modification on : Wednesday, April 14, 2021 - 3:39:37 AM
Long-term archiving on: : Sunday, February 14, 2021 - 7:06:07 PM
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- HAL Id : insu-01575071, version 1
- DOI : 10.1093/mnras/stx1912
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Citation
Kevin L. Heritier, Kathrin Altwegg, Hans Balsiger, Jean-Jacques Berthelier, Arnaud Beth, et al.. Ion composition at comet 67P near perihelion: Rosetta observations and model-based interpretation. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2017, 469 (Suppl_2), pp.S427-S442. ⟨10.1093/mnras/stx1912⟩. ⟨insu-01575071⟩
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