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Seasonal variations in source regions of the dust jets on comet 67P/Churyumov-Gerasimenko

Lai, I.-L. and Ip, W.-H. and Lee, J.-C. and Lin, Z.-Y. and Vincent, Jean-Baptiste and Oklay, Nilda and Sierks, H. and Barbieri, C. and Lamy, P. and Rodrigo, R. and Koschny, D. and Rickman, H. and Keller, H. U. and Agarwal, J. and Barucci, M. A. and Bertaux, J.-L. and Bertini, I. and Bodewits, D. and Boudreault, S. and Cremonese, G. and Da Deppo, V. and Davidsson, B. and Debei, S. and De Cecco, M. and Deller, J. and Fornasier, S. and Fulle, M. and Groussin, O. and Gutiérrez, P. J. and Güttler, C. and Hofmann, M. and Hviid, Stubbe and Jorda, L. and Knollenberg, Jörg and Kovacs, G. and Kramm, J.-R. and Kührt, Ekkehard and Küppers, M. and Lara, L. M. and Lazzarin, M. and López-Moreno, J. J. and Marzari, F. and Naletto, G. and Shi, X. and Tubiana, C. and Thomas, N. (2019) Seasonal variations in source regions of the dust jets on comet 67P/Churyumov-Gerasimenko. Astronomy & Astrophysics, 630, A17. EDP Sciences. DOI: 10.1051/0004-6361/201732094 ISSN 0004-6361

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Official URL: https://www.aanda.org/articles/aa/abs/2019/10/aa32094-17/aa32094-17.html

Abstract

Aims. We investigate the surface distribution of the source regions of dust jets on comet 67P/Churyumov-Gerasimenko as a function of time. Methods. The dust jet source regions were traced by the comprehensive imaging data set provided by the OSIRIS scientific camera. Results. We show in detail how the projected footpoints of the dust jets and hence the outgassing zone would move in consonance with the sunlit belt. Furthermore, a number of source regions characterized by repeated jet activity might be the result of local topographical variations or compositional heterogeneities. Conclusions. The spatial and temporal variations in source regions of the dust jets are influenced significantly by the seasonal effect. The strong dependence on the solar zenith angle and local time could be related to the gas sublimation process driven by solar insolation on a surface layer of low thermal inertia.

Item URL in elib:https://elib.dlr.de/131866/
Document Type:Article
Title:Seasonal variations in source regions of the dust jets on comet 67P/Churyumov-Gerasimenko
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lai, I.-L.Graduate Institute of Space Sciences, National Central University,UNSPECIFIED
Ip, W.-H.Graduate Institute of Space Sciences, National Central University,UNSPECIFIED
Lee, J.-C.Department of Earth Science, National Central University, TaoyuanUNSPECIFIED
Lin, Z.-Y.Institute of Astronomy, National Central University, Taoyuan CityUNSPECIFIED
Vincent, Jean-BaptisteJean-Baptiste.Vincent (at) dlr.deUNSPECIFIED
Oklay, NildaNilda.OklayVincent (at) dlr.dehttps://orcid.org/0000-0002-4909-9692
Sierks, H.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Barbieri, C.Department of Physics and Astronomy, University of Padova,UNSPECIFIED
Lamy, P.LAM (Laboratoire d’Astrophysique de Marseille), CNRS, AixUNSPECIFIED
Rodrigo, R.Centro de Astrobiologia, CSIC-INTA, 28850 Torrejon de Ardoz,UNSPECIFIED
Koschny, D.Scientific Support Office, European Space Research and TechnologyUNSPECIFIED
Rickman, H.Department of Physics and Astronomy, Uppsala University, Box 516,UNSPECIFIED
Keller, H. U.Institut für Geophysik und extraterrestrische Physik (IGEP),UNSPECIFIED
Agarwal, J.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Barucci, M. A.LESIA-Observatoire de Paris, CNRS, Université Pierre et MarieUNSPECIFIED
Bertaux, J.-L.CNR-IFN UOS Padova LUXOR, Via Trasea, 7, 35131 Padova, ItalyUNSPECIFIED
Bertini, I.Center of Studies and Activities for Space G. Colombo, CISAS,UNSPECIFIED
Bodewits, D.Department of Physics, Auburn University, Auburn, AL 36849,UNSPECIFIED
Boudreault, S.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Cremonese, G.INAF, Osservatorio Astronomico di Padova, VicoloUNSPECIFIED
Da Deppo, V.CNR-IFN UOS Padova LUXOR, Via Trasea, 7, 35131 Padova, ItalyUNSPECIFIED
Davidsson, B.Department of Physics and Astronomy, Uppsala University, Box 516,UNSPECIFIED
Debei, S.Department of Industrial Engineering, University of Padova, via Venezia 1, 35131 Padova, ItalyUNSPECIFIED
De Cecco, M.University of Trento, Via Mesiano 77, 38100 Trento, ItalyUNSPECIFIED
Deller, J.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Fornasier, S.LESIA-Observatoire de Paris, CNRS, Université Pierre et MarieUNSPECIFIED
Fulle, M.INAF – Osservatorio Astronomico, Via Tiepolo 11, 34014 Trieste,UNSPECIFIED
Groussin, O.LAM (Laboratoire d’Astrophysique de Marseille), CNRS, AixUNSPECIFIED
Gutiérrez, P. J.Instituto de Astrofísica de Andalucía (CSIC), Glorieta de laUNSPECIFIED
Güttler, C.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Hofmann, M.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Hviid, StubbeStubbe.Hviid (at) dlr.deUNSPECIFIED
Jorda, L.LAM (Laboratoire d’Astrophysique de Marseille), CNRS, AixUNSPECIFIED
Knollenberg, JörgJoerg.Knollenberg (at) dlr.deUNSPECIFIED
Kovacs, G.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Kramm, J.-R.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Kührt, EkkehardEkkehard.Kuehrt (at) dlr.deUNSPECIFIED
Küppers, M.Operations Department, European Space Astronomy Centre/ESA,UNSPECIFIED
Lara, L. M.Instituto de Astrofísica de Andalucía (CSIC), Glorieta de laUNSPECIFIED
Lazzarin, M.Department of Physics and Astronomy, University of Padova,UNSPECIFIED
López-Moreno, J. J.Instituto de Astrofísica de Andalucía (CSIC), Glorieta de laUNSPECIFIED
Marzari, F.Department of Physics and Astronomy, University of Padova,UNSPECIFIED
Naletto, G.Department of Information Engineering, University of Padova, ViaUNSPECIFIED
Shi, X.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Tubiana, C.Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, GermanyUNSPECIFIED
Thomas, N.Physikalisches Institut der Universität Bern, Sidlerstr. 5, 3012 Bern, SwitzerlandUNSPECIFIED
Date:2019
Journal or Publication Title:Astronomy & Astrophysics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:630
DOI :10.1051/0004-6361/201732094
Page Range:A17
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:67P/Churyumov-Gerasimenko Comets Rosetta Jets Activity
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: Hviid, Stubbe
Deposited On:04 Dec 2019 12:40
Last Modified:04 Dec 2019 12:40

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