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Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko

Lin, Z.-Y. and Lai, I.-L. and Su, C.-C. and Lee, J.-C. and Wu, J.-S. and Vincent, J.B. and La Forgia, Fiorangela and Sierks, H. and Barbieri, C. and Lamy, P. and Rodrigo, Rafael and Koschny, D. and Rickman, Hans and Keller, H. U. and Agarwal, J. and A'Hearn, M. F. and Barucci, M. A. and Bertaux, J.-L. and Bertini, I. and Bodewits, Dennis and Cremonese, G. and Da Deppo, V. and Davidsson, B. and Debei, S. and De Cecco, M. and Fornasier, S. and Fulle, M. and Groussin, Olivier and Gutierrez, P.J. and Güttler, C. and Hviid, S. and Jorda, L. and Knollenberg, J. and Kovacs, G. and Kramm, J. R. and Kührt, E. and Küppers, Michael and Lara López, Luisa M. and Lazzarin, M. and Lopez Moreno, J. and Lowry, S. and Marzari, F. and Michalik, H. and Mottola, S. and Naletto, G. and Oklay, N. and Pajola, M. and Rozek, A. and Thomas, N. and Tubiana, C. (2016) Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko. Astronomy & Astrophysics, 588, L3. EDP Sciences. DOI: 10.1051/0004-6361/201527784 ISSN 0004-6361

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Abstract

Aims. We analyze the physical properties and dynamical origin of a curved jet of comet 67P/Churyumov-Gerasimenko that was observed repeatedly in several nucleus rotations starting on May 30 and persisting until early August, 2015. Methods. We simulated the motion of dust grains ejected from the nucleus surface under the influence of the gravity and viscous drag effect of the expanding gas flow from the rotating nucleus. Results. The formation of the curved jet is a combination of the size of the dust particles (~0.1−1 mm) and the location of the source region near the nucleus equator. This enhances the spiral feature of the collimated dust stream after the dust is accelerated to a terminal speed on the order of m s-1.

Item URL in elib:https://elib.dlr.de/109934/
Document Type:Article
Title:Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lin, Z.-Y.national central university, jhongli, taoyuan, taiwanUNSPECIFIED
Lai, I.-L.institute of space sciences, national central university, chung-li 32054, taiwanUNSPECIFIED
Su, C.-C.Department of Mechanical Engineering, National Chiao Tung University, TaiwanUNSPECIFIED
Lee, J.-C.Dept. of Earth Science, National Central University, 32054 Chung-Li, TaiwanUNSPECIFIED
Wu, J.-S.Department of Mechanical Engineering, National Chiao Tung University, TaiwanUNSPECIFIED
Vincent, J.B.max-planck-institut fuer sonnensystemforschung, germanyUNSPECIFIED
La Forgia, Fiorangelauniversity of padova, department of physics and astronomy, vicolo dell'osservatorio 3, 35122 padova, italyUNSPECIFIED
Sierks, H.max-planck-institut für sonnensystemforschung, katlenburg-lindau, germanyUNSPECIFIED
Barbieri, C.university of padova, padova, italyUNSPECIFIED
Lamy, P.laboratoire d'astronomie spatiale, marseille, franceUNSPECIFIED
Rodrigo, Rafaelinstituto de astrofisica de andaluciaUNSPECIFIED
Koschny, D.detlef.koschny (at) esa.intUNSPECIFIED
Rickman, Hansuppsala astronomical observatoryUNSPECIFIED
Keller, H. U.max-planck-institut für sonnensystemforschung, katlenburg-lindauUNSPECIFIED
Agarwal, J.max-planck-institut für sonnensystemforschungUNSPECIFIED
A'Hearn, M. F.university of maryland, department of astronomy, maryland, usaUNSPECIFIED
Barucci, M. A.observatoire de paris, meudon, franceUNSPECIFIED
Bertaux, J.-L.laboratoire atmosphères, milieux, observations spatiales, cnrs/uvsq/upmc, 11 boulevard d’alembert, 78280 guyancourt, franceUNSPECIFIED
Bertini, I.dipartimento di astronomia, università di padova, padova, italyUNSPECIFIED
Bodewits, Dennisdepartment of astronomy, university of maryland, college park, md 20742-2421, usaUNSPECIFIED
Cremonese, G.osservatorio astronomico, padova, italyUNSPECIFIED
Da Deppo, V.consiglio nazionale delle ricerche-istituto nazionale per la fisica della materia, luxor, padova, italyUNSPECIFIED
Davidsson, B.astronomiska observatoriet, uppsala, swedenUNSPECIFIED
Debei, S.università di padova, center of studies and activities of space (cisas) "g.colombo", padova, italyUNSPECIFIED
De Cecco, M.università di padova, center of studies and activities of space (cisas) "g.colombo", padova, italyUNSPECIFIED
Fornasier, S.observatoire de paris-meudon, franceUNSPECIFIED
Fulle, M.inaf - osservatorio astronomico di trieste, trieste, italyUNSPECIFIED
Groussin, Olivierlab. d'astrophysique de marseille, franceUNSPECIFIED
Gutierrez, P.J.iaa-csic, granada, spainUNSPECIFIED
Güttler, C.max-planck-institut für sonnensystemforschungUNSPECIFIED
Hviid, S.stubbe.hviid (at) dlr.deUNSPECIFIED
Jorda, L.laboratoire d'astrophysique de marseille, franceUNSPECIFIED
Knollenberg, J.joerg.knollenberg (at) dlr.deUNSPECIFIED
Kovacs, G.max–planck–institut für sonnensystemforschung, justus–von–UNSPECIFIED
Kramm, J. R.max planck institute for solar systems research, katlenburg-lindau, germanyUNSPECIFIED
Kührt, E.ekkehard.kuehrt (at) dlr.deUNSPECIFIED
Küppers, Michaelmax-planck-institut für sonnensystemforschungUNSPECIFIED
Lara López, Luisa M.iaa-csic granada, spainUNSPECIFIED
Lazzarin, M.department of astronomy, university of paduaUNSPECIFIED
Lopez Moreno, J.instituto de astrofifica de andalucia-consejo superior de investigaciones cientificas, granada, spainUNSPECIFIED
Lowry, S.university of kent, canterbury, ukUNSPECIFIED
Marzari, F.università di padova, departimento di fisica, padova, italyUNSPECIFIED
Michalik, H.institut für datentechnik und kommunikationsnetze (ida), technische universität braunschweig, hans-sommer-str. 66, 38106 braunschweig, germanyUNSPECIFIED
Mottola, S.stefano.mottola (at) dlr.deUNSPECIFIED
Naletto, G.università di padova, departimento di elettronica et informatica, padova, italyUNSPECIFIED
Oklay, N.max-planck-institut für sonnensystemforschungUNSPECIFIED
Pajola, M.cisas - center for studies and activities for space, university of padovaUNSPECIFIED
Rozek, A.centre for astrophysics and planetary science, school of physi- cal sciences, the university of kent, canterbury ct2 7nh, united kingdomUNSPECIFIED
Thomas, N.max-planck-institut für aeronomie, katlenburg-lindauUNSPECIFIED
Tubiana, C.max-planck-institut fuer sonnensystemforschung, germanyUNSPECIFIED
Date:2016
Journal or Publication Title:Astronomy & Astrophysics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:588
DOI :10.1051/0004-6361/201527784
Page Range:L3
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:comets: individual: 67P/Churyumov-Gerasimenko
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, R - Projekt ROSETTA Lander
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Schubert, Renate
Deposited On:22 Dec 2016 09:24
Last Modified:08 Mar 2018 18:23

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