Ion chemistry in the coma of comet 67P near perihelion

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Author(s): Fuselier, S. A.; Altwegg, Kathrin; Balsiger, Hans; Berthelier, Jean-Jacques; Beth, A.; Bieler, A.; Briois, Christelle; Broiles, T. W.; Burch, J. L.; Calmonte, U.; Cessateur, G.; Combi, M.; de Keyser, J.; Fiethe, B.; Galand, M.; Gasc, S.; Gombosi, Tamas I.; Gunell, H.; Hansen, K. C.; Hässig, M.; Heritier, K. L.; Korth, A.; Le Roy, Léna; Luspay-Kuti, A.; Mall, U.; Mandt, K. E.; Petrinec, S. M.; Rème, H.; Rinaldi, M.; Rubin, M.; Sémon, T.; Trattner, K. J.; Tzou, C.-Y.; Vigren, E.; Waite, J. H.; Wurz, P.
Source:
S77
S67
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2016, 462 (Suppl. 1), pp.S67-S77. ⟨10.1093/mnras/stw2149⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2016, 462 (Suppl. 1), pp.S67-S77. ⟨10.1093/mnras/stw2149⟩
Fuselier, S. A.; Altwegg, Kathrin; Balsiger, Hans; Berthelier, J. J.; Beth, A.; Bieler, André; Briois, C.; Broiles, T. W.; Burch, J. L.; Calmonte, Ursina Maria; Cessateur, G.; Combi, M.; De Keyser, J.; Fiethe, B.; Galand, M.; Gasc, Sébastien; Gombosi, T. I.; Gunell, H.; Hansen, K. C.; Hässig, Myrtha; ... (2016). Ion chemistry in the coma of comet 67P near perihelion. Monthly notices of the Royal Astronomical Society, 462(Suppl 1), S67-S77. Oxford University Press 10.1093/mnras/stw2149
Subject Terms:
530 Physics; comets: general; 520 Astronomy; [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]; [SDU.ASTR.EP] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]; Astronomy & Astrophysics; plasmas; comets: individual; 620 Engineering; Fusion, Plasma and Space Physics; 01 natural sciences; 3. Good health; Fusion, plasma och rymdfysik; 0201 Astronomical And Space Sciences; solar wind; 13. Climate action; 0103 physical sciences
Document Type:
Article
Online Access:
https://academic.oup.com/mnras/article-pdf/462/Suppl_1/S67/8242304/stw2149.pdf
https://pure.mpg.de/pubman/faces/ViewItemOverviewPage.jsp?itemId=item_2481266,http://uu.diva-portal.org/smash/get/diva2:1136578/FULLTEXT01,https://hal.archives-ouvertes.fr/insu-01368192,https://academic.oup.com/mnras/article/462/Suppl_1/S67/2633363,http://uu.diva-portal.org/smash/record.jsf?pid=diva2:1136578,http://www.diva-portal.org/smash/record.jsf?pid=diva2:1136578
http://hdl.handle.net/10044/1/43339
https://insu.hal.science/insu-01368192,https://insu.hal.science/insu-01368192v1/document,https://insu.hal.science/insu-01368192v1/file/MNRAS-2016-Fuselier-S67-77.pdf
https://hal-insu.archives-ouvertes.fr/insu-01368192,https://hal-insu.archives-ouvertes.fr/insu-01368192/document,https://hal-insu.archives-ouvertes.fr/insu-01368192/file/MNRAS-2016-Fuselier-S67-77.pdf
https://boris.unibe.ch/97009/
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-328421

Additional Information
- Contributors:
  Science and Technology Facilities Council (STFC); Space Science Division [San Antonio]; Southwest Research Institute [San Antonio] (SwRI); UTSA Department of Physics and Astronomy [San Antonio]; The University of Texas at San Antonio (UTSA); Physikalisches Institut [Bern]; Universität Bern = University of Bern = Université de Berne (UNIBE); PLANETO - LATMOS; Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS); Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS); Department of Physics [Imperial College London]; Imperial College London; Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor] (AOSS); University of Michigan [Ann Arbor]; University of Michigan System-University of Michigan System; Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E); Observatoire des Sciences de l'Univers en région Centre (OSUC); Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES); Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB); Institute of Computer and Network Engineering [Braunschweig] (IDA); Technische Universität Braunschweig = Technical University of Braunschweig [Braunschweig]; Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS); Max-Planck-Gesellschaft; Lockheed Martin Advanced Technology Center (ATC); Institut de recherche en astrophysique et planétologie (IRAP); Université Toulouse III - Paul Sabatier (UT3); Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP); Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3); Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS); Laboratory for Atmospheric and Space Physics [Boulder] (LASP); University of Colorado [Boulder]; Swedish Institute of Space Physics [Uppsala / Kiruna] (IRF); Cardon, Catherine; Universität Bern [Bern]; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES); Max-Planck-Institut für Sonnensystemforschung (MPS); Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3); Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP); Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS); Swedish Institute of Space Physics [Uppsala] (IRF); Space Science Division San Antonio; Southwest Research Institute San Antonio (SwRI); UTSA Department of Physics and Astronomy San Antonio; Physikalisches Institut Bern; Universität Bern / University of Bern (UNIBE); Department of Physics Imperial College London; Department of Atmospheric, Oceanic, and Space Sciences Ann Arbor (AOSS); University of Michigan Ann Arbor; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES); Institute of Computer and Network Engineering Braunschweig (IDA); Technische Universität Braunschweig = Technical University of Braunschweig Braunschweig; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS); Laboratory for Atmospheric and Space Physics Boulder (LASP); University of Colorado Boulder; Swedish Institute of Space Physics Uppsala (IRF)
- Publication Information:
  Oxford University Press (OUP), 2016.
- Publication Date:
  2016
- Abstract:
  The coma and the comet-solar wind interaction of comet 67P/Churyumov-Gerasimenko changed dramatically from the initial Rosetta spacecraft encounter in August 2014 through perihelion in August 2015. Just before equinox (at 1.6 AU from the Sun), the solar wind signal disappeared and two regions of different cometary ion characteristics were observed. These “outer” and “inner” regions have cometary ion characteristics similar to outside and inside the ion pileup region observed during the Giotto approach to comet 1P/Halley. Rosetta/DFMS ion mass spectrometer observations are used here to investigate the H3O+/H2O+ ratio in the outer and inner regions at 67P/ Churyumov-Gerasimenko. The H3O+/H2O+ ratio and the H3O+ signal are observed to increase in the transition from the outer to the inner region and the H3O+ signal appears to be weakly correlated with cometary ion energy. These ion composition changes are similar to the ones observed during the 1P/Halley flyby. Modeling is used to determine the importance of neutral composition and transport of neutrals and ions away from the nucleus. This modeling demonstrates that changes in the H3O+/H2O+ ratio appear to be driven largely by transport properties and only weakly by neutral composition in the coma.
- File Description:
  application/pdf
- ISSN:
  1365-2966
  0035-8711
- Accession Number:
  10.1093/mnras/stw2149
- Accession Number:
  10.7892/boris.97009
- Accession Number:
  edsair.doi.dedup.....e9deef103f69c1a06ba8fa504fea361d

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Ion chemistry in the coma of comet 67P near perihelion

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