Journal articles
Composition-dependent outgassing of comet 67P/Churyumov-Gerasimenko from ROSINA/DFMS. Implications for nucleus heterogeneity?
A. Luspay-Kuti
1
M. Hässig
1
S. A. Fuselier
1
K. E. Mandt
1
Kathrin Altwegg
2, 3
Hans Balsiger
3
S. Gasc
3
A. Jäckel
3
Léna Le Roy
2
M. Rubin
3
C.-Y. Tzou
3
P. Wurz
2, 3
O. Mousis
4
F. Dhooghe
5, 6
Jean-Jacques Berthelier
7
Björn Fiethe
8
Tamas I. Gombosi
9
U. Mall
10
Léna Le Roy 2
Author IdHAL : lena-le-roy ORCID : https://orcid.org/0000-0002-5984-6153
M. Rubin 3
Author
C.-Y. Tzou 3
Author
P. Wurz 2, 3
Author
Tamas I. Gombosi 9
Author
U. Mall 10
Author
1
Space Science Division [San Antonio] (United States)
- SwRI - Southwest Research Institute [San Antonio] (6220 Culebra Rd, San Antonio, TX 78238 - United States)
2
CSH - Center for Space and Habitability (University of Bern,
Hochschulstrasse 4,
3012 Bern - Switzerland)
- University of Bern (Hochschulstrasse 4, 3012 Bern, Switzerland - Switzerland)
3
Physikalisches Institut [Bern] (Sidlerstr. 5, 3012 Bern - Switzerland)
- Universität Bern [Bern] (Hochschulstrasse 4 - CH-3012 Bern - Switzerland)
4
LAM - Laboratoire d'Astrophysique de Marseille (Pôle de l'Étoile Site de Château-Gombert 38, rue Frédéric Joliot-Curie 13388 Marseille cedex 13 - France)
- AMU - Aix Marseille Université : UMR7326 (Aix-Marseille Université Jardins du Pharo 58 Boulevard Charles Livon 13284 Marseille cedex 7 - 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] : UMR7326 (18 avenue Edouard Belin 31401 Toulouse - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7326 (France)
5
CmPA - Centre for Mathematical Plasma-Astrophysics [Leuven] (Celestijnenlaan 200B, bus 2400, B-3001 Leuven - Belgium)
- KU Leuven - Catholic University of Leuven - Katholieke Universiteit Leuven (Oude Markt 13 - bus 5005, 3000 Leuven - Belgium)
6
BIRA-IASB - Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (Ringlaan-3-Avenue Circulaire B-1180 Brussels - Belgium)
7
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)
8
IDA - Institute of Computer and Network Engineering [Braunschweig] (Hans-Sommer-Street 66, 38106 Braunschweig - Germany)
- Technische Universität Braunschweig [Braunschweig] (38092 Braunschweig - Germany)
9
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)
10
MPS - Max Planck Institute for Solar System Research (37077 Göttingen - Germany)
- Max-Planck-Gesellschaft (Jägerstrasse, 10-11, D-10117 Berlin - Germany)
Abstract : Early measurements of Rosetta’s target comet, 67P/Churyumov-Gerasimenko (67P), showed a strongly heterogeneous coma in H2O, CO, and CO2.
Aims. The purpose of this work is to further investigate the coma heterogeneity of 67P, and to provide predictions for the near- perihelion outgassing profile based on the proposed explanations.
Methods. Measurements of various minor volatile species by ROSINA/DFMS on board Rosetta are examined. The analysis focuses on the currently poorly illuminated winter (southern) hemisphere of 67P.
Results. Coma heterogeneity is not limited to the major outgassing species. Minor species show better correlation with either H2O or CO2. The molecule CH4 shows a different diurnal pattern from all other analyzed species. Such features have implications for nucleus heterogeneity and thermal processing.
Conclusions. Future analysis of additional volatiles and modeling the heterogeneity are required to better understand the observed coma profile.
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-01206306
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Submitted on : Friday, November 20, 2020 - 1:33:46 PM
Last modification on : Wednesday, April 7, 2021 - 8:20:03 PM
Contributor : Catherine Cardon <>
Submitted on : Friday, November 20, 2020 - 1:33:46 PM
Last modification on : Wednesday, April 7, 2021 - 8:20:03 PM
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- HAL Id : insu-01206306, version 1
- DOI : 10.1051/0004-6361/201526205
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INSU | SU-SCIENCES | SORBONNE-UNIVERSITE | UVSQ | OSU-INSTITUT-PYTHEAS | LATMOS | LAM | UNIV-AMU | CNRS | UPMC | SU-TI
Citation
A. Luspay-Kuti, M. Hässig, S. A. Fuselier, K. E. Mandt, Kathrin Altwegg, et al.. Composition-dependent outgassing of comet 67P/Churyumov-Gerasimenko from ROSINA/DFMS. Implications for nucleus heterogeneity?. Astronomy and Astrophysics - A&A, EDP Sciences, 2015, 583, A4 (8 p.). ⟨10.1051/0004-6361/201526205⟩. ⟨insu-01206306⟩
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