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

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dc.contributor.authorLai, I. L.
dc.contributor.authorIp, W. H.
dc.contributor.authorLee, J. C.
dc.contributor.authorLin, Z. Y.
dc.contributor.authorVicent, J. B.
dc.contributor.authorOklay, N.
dc.contributor.authorSierks, H.
dc.contributor.authorBarbieri, C.
dc.contributor.authorLamy, Philippe
dc.contributor.authorRodrigo, Rafael
dc.contributor.authorKoschny, D.
dc.contributor.authorRickman, H.
dc.contributor.authorKeller, H. U.
dc.contributor.authorAgarwal, J.
dc.contributor.authorBarucci, M. A.
dc.contributor.authorBertaux, J. L.
dc.contributor.authorBertini, I.
dc.contributor.authorBodewits, D.
dc.contributor.authorBoudreault, S.
dc.contributor.authorCremonese, G.
dc.contributor.authorDa Deppo, V.
dc.contributor.authorDavidsson, B. J. R.
dc.contributor.authorDebei, S.
dc.contributor.authorDe Cecco, M.
dc.contributor.authorDeller, J.
dc.contributor.authorFornasier, S.
dc.contributor.authorFulle, M.
dc.contributor.authorGroussin, O.
dc.contributor.authorGutiérrez, Pedro J.
dc.contributor.authorGüttler, C.
dc.contributor.authorHofmann, M.
dc.contributor.authorHviid, S. F.
dc.contributor.authorJorda, L.
dc.contributor.authorKnollenberg, J.
dc.contributor.authorKovács, G.
dc.contributor.authorkramm, J. R.
dc.contributor.authorKührt, E.
dc.contributor.authorKüppers, M.
dc.contributor.authorLara, L. M.
dc.contributor.authorLazzarin, M.
dc.contributor.authorLópez Moreno, J. J.
dc.contributor.authorMarzari, F.
dc.contributor.authorNaletto, G.
dc.contributor.authorShi, X.
dc.contributor.authorTubiana, C.
dc.contributor.authorThomas, N.
dc.contributor.funderMinistry of Science and Technology, Taiwan (MOST)
dc.date.accessioned2021-04-14T12:43:35Z
dc.date.available2021-04-14T12:43:35Z
dc.date.issued2019-09-20
dc.description.abstractAims. 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.es
dc.description.peerreviewedPeer reviewes
dc.description.sponsorshipWe thank the referee for useful comments that improved the scientific content of this study. OSIRIS was built by a consortium led by the Max-Planck-Institut für Sonnensystemforschung, Göttingen, Germany, in collaboration with CISAS, University of Padova, Italy, the Laboratoire d’Astrophysique de Marseille, France, the Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain, the Scientific Support Office of the European Space Agency, Noordwijk, Netherlands, the Instituto Nacional de Técnica Aeroespacial, Madrid, Spain, the Universidad Politéchnica de Madrid, Spain, the Department of Physics and Astronomy of Uppsala University, Sweden, and the Institut für Datentechnik und Kommunikationsnetze der Technischen Universität Braunschweig, Germany. The support of the national funding agencies of Germany (DLR), France (CNES), Italy (ASI), Spain (MEC), Sweden (SNSB), and the ESA Technical Directorate is gratefully acknowledged. This work was also supported by grant number NSC102-2112-M-008-013-MY3 and NSC 101-2111-M-008-016 from the Ministry of Science and Technology of Taiwan and grant number 017/2014/A1 and 039/2013/A2 of FDCT, Macau. We are indebted to the whole Rosetta mission team, Science Ground Segment, and Rosetta Mission Operation Control for their hard work making this mission possible; With funding from the Spanish government through the "María de Maeztu Unit of Excellence" accreditation (MDM-2017-0737)es
dc.identifier.citationAstronomy and Astrophysics 630: A17(2019)es
dc.identifier.doi10.1051/0004-6361/201732094
dc.identifier.e-issn1432-0746
dc.identifier.funderhttps://doi.org/10.13039/100007225
dc.identifier.issn0004-6361
dc.identifier.otherhttps://www.aanda.org/articles/aa/full_html/2019/10/aa32094-17/aa32094-17.html
dc.identifier.urihttp://hdl.handle.net/20.500.12666/371
dc.language.isoenges
dc.publisherEDP Scienceses
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationales
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.license© ESO 2019
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectComets: individuals: 67Pes
dc.subjectChuryumov-Gerasimenkoes
dc.titleSeasonal variations in source regions of the dust jets on comet 67P/Churyumov-Gerasimenkoes
dc.typeinfo:eu-repo/semantics/articlees
dc.type.coarhttp://purl.org/coar/resource_type/c_6501
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication

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