Journal articles
A comparison between the two lobes of comet 67P/Churyumov-Gerasimenko based on D/H ratios in H2O measured with the Rosetta/ROSINA DFMS
Isaac R. H. G. Schroeder I
1
Kathrin Altwegg
1
Hans Balsiger
1
Jean-Jacques Berthelier
2
Michael R. Combi
3
Johan de Keyser
4
Björn Fiethe
5
Stephen A. Fuselier
6, 7
Tamas I. Gombosi
3
Kenneth C. Hansen
3
Martin Rubin
1
Yinsi Shou
3
Valeriy M. Tenishev
3
Thierry Sémon
1
Susanne F. Wampfler
8
Peter Wurz
1, 8
Isaac R. H. G. Schroeder I 1
Author
Kathrin Altwegg 1
Author
Hans Balsiger 1
Author
Jean-Jacques Berthelier 2
Author
Michael R. Combi 3
Author
Johan de Keyser 4
Author
Björn Fiethe 5
Author
Stephen A. Fuselier 6, 7
Author
Valeriy M. Tenishev 3
Author
Thierry Sémon 1
Author
Susanne F. Wampfler 8
Author
Peter Wurz 1, 8
Author
1
Physikalisches Institut [Bern] (Sidlerstr. 5, 3012 Bern - Switzerland)
- Universität Bern [Bern] (Hochschulstrasse 4 - CH-3012 Bern - Switzerland)
2
IMPEC - LATMOS (France)
- LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales (11 boulevard d'Alembert
Quartier des Garennes
78280 - Guyancourt - 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)
- UVSQ - Université de Versailles Saint-Quentin-en-Yvelines : UMR8190 (55 avenue de Paris - 78035 Versailles cedex - France)
- SU - Sorbonne Université : UMR8190 (21 rue de l’École de médecine - 75006 Paris - France)
3
CLaSP - Department of Climate and Space Sciences and Engineering (University of Michigan, 2455 Hayward Street, Ann Arbor,
MI-48109-2143 - United States)
- University of Michigan [Ann Arbor] (500 Church Street Ann Arbor, MI 48109-1090 - United States)
- University of Michigan System (Michigan - United States)
4
BIRA-IASB - Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (Ringlaan-3-Avenue Circulaire B-1180 Brussels - Belgium)
5
IDA - Institute of Computer and Network Engineering [Braunschweig] (Hans-Sommer-Street 66, 38106 Braunschweig - Germany)
- Technische Universität Braunschweig [Braunschweig] (38092 Braunschweig - Germany)
6
UTSA - The University of Texas at San Antonio (1 UTSA Circle, San Antonio, TX 78249 - United States)
7
SwRI - Southwest Research Institute [San Antonio] (6220 Culebra Rd, San Antonio, TX 78238 - United States)
8
CSH - Center for Space and Habitability (University of Bern,
Hochschulstrasse 4,
3012 Bern - Switzerland)
- University of Bern (Hochschulstrasse 4, 3012 Bern, Switzerland - Switzerland)
Abstract : The nucleus of the Jupiter-family comet 67P/Churyumov–Gerasimenko was discovered to be bi-lobate in shape when the European Space Agency spacecraft Rosetta first approached it in 2014 July. The bi-lobate structure of the cometary nucleus has led to much discussion regarding the possible manner of its formation and on how the composition of each lobe might compare with that of the other. During its two-year-long mission from 2014 to 2016, Rosetta remained in close proximity to 67P/Churyumov–Gerasimenko, studying its coma and nucleus in situ. Based on lobe-specific measurements of HDO and H2O performed with the ROSINA Double Focusing Mass Spectrometer (DFMS) on board Rosetta, the deuterium-to-hydrogen (D/H) ratios in water from the two lobes can be compared. No appreciable difference was observed, suggesting that both lobes formed in the same region and are homogeneous in their D/H ratios.
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-02189809
Contributor : Catherine Cardon <>
Submitted on : Saturday, July 20, 2019 - 10:56:34 AM
Last modification on : Friday, October 9, 2020 - 9:51:30 AM
Contributor : Catherine Cardon <>
Submitted on : Saturday, July 20, 2019 - 10:56:34 AM
Last modification on : Friday, October 9, 2020 - 9:51:30 AM
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- HAL Id : insu-02189809, version 1
- ARXIV : 1907.06888
- DOI : 10.1093/mnras/stz2482
Collections
INSU | LATMOS | UVSQ | CNRS | SORBONNE-UNIVERSITE | SU-SCIENCES | UNIV-PARIS-SACLAY
Citation
Isaac R. H. G. Schroeder I, Kathrin Altwegg, Hans Balsiger, Jean-Jacques Berthelier, Michael R. Combi, et al.. A comparison between the two lobes of comet 67P/Churyumov-Gerasimenko based on D/H ratios in H2O measured with the Rosetta/ROSINA DFMS. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2019, pp.4734-4740. ⟨10.1093/mnras/stz2482⟩. ⟨insu-02189809⟩
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