Morphology and dynamics of the jets of comet 67P/Churyumov-Gerasimenko: Early-phase development

Lin, Z.-Y. and Ip, W.-H. and Lai, I.-L. and Lee, J.-C. and Vincent, J.-B. and Lara, L.M. and Bodewits, D. and Sierks, H. and Barbieri, C. and Lamy, P.L. and Rodrigo, R. and Koschny, D. and Rickman, H. and Keller, H.U. and Agarwal, J. and A'Hearn, M.F. and Barucci, M.A. and Bertaux, J.-L. and Bertini, I. 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, O. and Gutiérrez, P.J. and Güttler, C. and Hviid, S.F. and Jorda, L. and Knollenberg, J. and Kovacs, G. and Kramm, J.-R. and Kührt, E. and Küppers, M. and La Forgia, F. and Lazzarin, M. and López-Moreno, J.J. and Lowry, S.C. and Marzari, F. and Michalik, H. and Mottola, S. and Naletto, G. and Oklay, N. and Pajola, M. and Rożek, A. and Thomas, N. and Liao, Y. and Tubiana, C. (2015) Morphology and dynamics of the jets of comet 67P/Churyumov-Gerasimenko: Early-phase development. Astronomy and Astrophysics, 583 . (A11) 1-10. ISSN 0004-6361. E-ISSN 1432-0746. (doi:https://doi.org/10.1051/0004-6361/201525961) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1051/0004-6361/201525961

Abstract

Aims. The OSIRIS camera onboard the Rosetta spacecraft obtained close-up views of the dust coma of comet 67P. The jet structures can be used to trace their source regions and to examine the possible effect of gas-surface interaction. Methods. We analyzed the wide-angle images obtained in the special dust observation sequences between August and September 2014. The jet features detected in different images were compared to study their time variability. The locations of the potential source regions of some of the jets are identified by ray tracing. We used a ring-masking technique to calculate the brightness distribution of dust jets along the projected distance. Results. The jets detected between August and September 2014 mostly originated in the Hapi region. Morphological changes appeared over a timescale of several days in September. The brightness slope of the dust jets is much steeper than the background coma. This might be related to the sublimation or fragmentation of the emitted dust grains. Interaction of the expanding gas flow with the cliff walls on both sides of Hapi could lead to erosion and material down-fall to the nucleus surface. © ESO, 2015.

Item Type: Article
Additional information: Unmapped bibliographic data: C7 - A11 [EPrints field already has value set] LA - English [Field not mapped to EPrints] J2 - Astron. Astrophys. [Field not mapped to EPrints] AD - Institute of Astronomy, National Central University, Chung-Li, Taiwan [Field not mapped to EPrints] AD - Institute of Space Sciences, National Central University, Chung-Li, Taiwan [Field not mapped to EPrints] AD - Space Science Institute, Macau University of Science and Technology, Macau [Field not mapped to EPrints] AD - Dept. of Earth Science, National Central University, Chung-Li, Taiwan [Field not mapped to EPrints] AD - Max-Planck Institut für Sonnensystemforschung, Justus-von-Liebig-Weg, 3, Göttingen, Germany [Field not mapped to EPrints] AD - Instituto de Astrofísica de Andalucía (CSIC), c/Glorieta de la Astronomía, Granada, Spain [Field not mapped to EPrints] AD - Department for Astronomy, University of Maryland, College Park, MD, United States [Field not mapped to EPrints] AD - Department of Physics and Astronomy g. Galilei, University of Padova, Vic. Osservatorio 3, Padova, Italy [Field not mapped to EPrints] AD - Centro di Ateneo di Studi Ed Attivitá Spaziali giuseppe Colombo, University of Padova, via Venezia 15, Padova, Italy [Field not mapped to EPrints] AD - Aix Marseille Université, CNRS, LAM (Laboratoire d'Astro-physique de Marseille, UMR 7326, Marseille, France [Field not mapped to EPrints] AD - Centro de Astrobiologia (INTA-CSIC), European Space Agency (ESA), European Space Astronomy Centre (ESAC), PO Box 78, Villanueva de la Cañada, Madrid, Spain [Field not mapped to EPrints] AD - International Space Science Institute, Hallerstrasse 6, Bern, Switzerland [Field not mapped to EPrints] AD - Research and Scientific Support Department, European Space Agency, Noordwijk, Netherlands [Field not mapped to EPrints] AD - PAS Space Reserch Center, Bartycka 18A, Warszawa, Poland [Field not mapped to EPrints] AD - Institut für Geophysik und Extraterrestrische Physik (IGEP), Technische Universität Braunschweig, Braunschweig, Germany [Field not mapped to EPrints] AD - LESIA-Observatoire de Paris, CNRS, UPMC Univ Paris 06, Univ. Paris-Diderot, 5 place J. Janssen, Meudon Principal Cedex, France [Field not mapped to EPrints] AD - LATMOS, CNRS/UVSQ/IPSL, 11 Boulevard d'Alembert, Guyancourt, France [Field not mapped to EPrints] AD - INAF Osservatorio Astronomico di Padova, vic. dell'Osservatorio 5, Padova, Italy [Field not mapped to EPrints] AD - CNR-IFN UOS Padova LUXOR, via Trasea 7, Padova, Italy [Field not mapped to EPrints] AD - Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, Sweden [Field not mapped to EPrints] AD - Department of Industrial Engineering, University of Padova, via Venezia 1, Padova, Italy [Field not mapped to EPrints] AD - University of Trento, via Sommarive 9, Trento, Italy [Field not mapped to EPrints] AD - INAF-Osservatorio Astronomico di Trieste, via Tiepolo 11, Trieste, Italy [Field not mapped to EPrints] AD - Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Planetenforschung, Rutherfordstrasse 2, Berlin, Germany [Field not mapped to EPrints] AD - Centre for Astrophysics and Planetary Science, School of Physical Sciences, University of Kent, Canterbury, United Kingdom [Field not mapped to EPrints] AD - Department of Information Engineering, University of Padova, via Gradenigo 6/B, Padova, Italy [Field not mapped to EPrints] AD - Physikalisches Institut der Universität Bern, Sidlerstr. 5, Bern, Switzerland [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Comets: individual: 67P/Churyumov-Gerasimenko, Dust, Flow of gases, Luminance, Ray tracing, 67p/churyumov-gerasimenko, Brightness distribution, Comets: individual: 67P/Churyumov-Gerasimenko, Gas-surface interaction, Morphological changes, Morphology and dynamics, Phase development, Potential source regions, Fighter aircraft
Subjects: Q Science > QB Astronomy
Divisions: Faculties > Sciences > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User: Stephen Lowry
Date Deposited: 08 Dec 2015 22:24 UTC
Last Modified: 14 Mar 2019 08:50 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/52265 (The current URI for this page, for reference purposes)
Rożek, A.: https://orcid.org/0000-0003-2341-2238
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