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Time variability and heterogeneity in the coma of 67P/Churyumov-Gerasimenko

Hässig, M. and Altwegg, K. and Balsiger, H. and Bar-Nun, A. and Berthelier, J. J. and Bieler, A. and Bochsler, P. and Briois, C. and Calmonte, U. and Combi, M. and De Keyser, J. and Eberhardt, P. and Fiethe, B. and Fuselier, S. A. and Galand, M. and Gasc, S. and Gombosi, T. I. and Hansen, K. C. and Jäckel, A. and Keller, H.U. and Kopp, E. and Korth, A. and Kührt, E. and Le Roy, L. and Mall, U. and Marty, B. and Mousis, O. and Neefs, E. and Owen, T. and Rème, H. and Rubin, M. and Sémon, T. and Tornow, Carmen and Tzou, C.-Y. and Waite, J. H. and Wurz, P. (2015) Time variability and heterogeneity in the coma of 67P/Churyumov-Gerasimenko. Science, 347 (6220), aaa0276-1. American Association for the Advancement of Science (AAAS). DOI: 10.1126/science.aaa0276 ISSN 0036-8075

Full text not available from this repository.

Official URL: http://www.sciencemag.org/content/347/6220/aaa0276.full.html

Abstract

Comets contain the best-preserved material from the beginning of our planetary system. Their nuclei and comae composition reveal clues about physical and chemical conditions during the early solar system when comets formed. ROSINA (Rosetta Orbiter Spectrometer for Ion and Neutral Analysis) onboard the Rosetta spacecraft has measured the coma composition of comet 67P/Churyumov-Gerasimenko with well-sampled time resolution per rotation. Measurements were made over many comet rotation periods and a wide range of latitudes. These measurements show large fluctuations in composition in a heterogeneous coma that has diurnal and possibly seasonal variations in the major outgassing species: water, carbon monoxide, and carbon dioxide.These results indicate a complex coma-nucleus relationship where seasonal variations may be driven by temperature differences just below the comet surface.

Item URL in elib:https://elib.dlr.de/97247/
Document Type:Article
Title:Time variability and heterogeneity in the coma of 67P/Churyumov-Gerasimenko
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hässig, M.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland, myrtha.haessig (at) swri.orgUNSPECIFIED
Altwegg, K.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Balsiger, H.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Bar-Nun, A.Department of Geosciences, Tel-Aviv University, Ramat-Aviv, Tel-Aviv, IsraelUNSPECIFIED
Berthelier, J. J.Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Institute Pierre Simon Laplace (IPSL), Centre national de recherche scientifique (CNRS), Université Pierre et Marie Curie (UPMC), FranceUNSPECIFIED
Bieler, A.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Bochsler, P.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Briois, C.Laboratoire de Physique et Chimie de l’Environnement et de l’Espace (LPC2E), UMR 7328 CNRS – Université d’Orléans, FranceUNSPECIFIED
Calmonte, U.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Combi, M.Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109, USAUNSPECIFIED
De Keyser, J.Belgian Institute for Space Aeronomy (BIRA-IASB), Ringlaan 3, B-1180 Brussels, BelgiumUNSPECIFIED
Eberhardt, P.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Fiethe, B.Institute of Computer and Network Engineering (IDA), TU Braunschweig, Hans-Sommer-Straße 66, D-38106 Braunschweig, GermanyUNSPECIFIED
Fuselier, S. A.Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238, USAUNSPECIFIED
Galand, M.Department of Physics, Imperial College London, Prince Consort Road, London SW7 2AZ, UKUNSPECIFIED
Gasc, S.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Gombosi, T. I.Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109, USAUNSPECIFIED
Hansen, K. C.Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109, USAUNSPECIFIED
Jäckel, A.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Keller, H.U.German Aerospace Center, Institute of Planetary Research, Asteroids and Comets, Rutherfordstraße 2, 12489 Berlin, GermanyUNSPECIFIED
Kopp, E.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Korth, A.Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Kührt, E.ekkehard.kuehrt (at) dlr.deUNSPECIFIED
Le Roy, L.Center for Space and Habitability (CSH), University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Mall, U.Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Marty, B.Centre de Recherches Pétrographiques et Géochimiques (CRPG), 15 Rue Notre Dame des Pauvres, BP 20, 54501 Vandoeuvre lès Nancy, FranceUNSPECIFIED
Mousis, O.Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille), UMR 7326, 13388, Marseille, FranceUNSPECIFIED
Neefs, E.Engineering Division, BIRA-IASB, Ringlaan 3, B-1180 Brussels, BelgiumUNSPECIFIED
Owen, T.Institute for Astronomy, University of Hawaii, Honolulu, HI 96822, USAUNSPECIFIED
Rème, H.Université de Toulouse, Université Paul Sabathier (UPS), Observatoire de Midi- Pyrénées (OMP), Institut de Recherche en Astrophysique et Planétologie (IRAP), Toulouse, FranceUNSPECIFIED
Rubin, M.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Sémon, T.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Tornow, Carmencarmen.tornow (at) dlr.deUNSPECIFIED
Tzou, C.-Y.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Waite, J. H.Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238, USAUNSPECIFIED
Wurz, P.Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, SwitzerlandUNSPECIFIED
Date:23 January 2015
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:347
DOI :10.1126/science.aaa0276
Page Range:aaa0276-1
Publisher:American Association for the Advancement of Science (AAAS)
ISSN:0036-8075
Status:Published
Keywords:67P/Churyumov-Gerasimenko, comet, ROSINA, time variability
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt ROSETTA Instrumente
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Bründl, Tara-Marie
Deposited On:04 Sep 2015 08:14
Last Modified:08 Mar 2018 18:51

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