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Sublimation of icy aggregates in the coma of comet 67P/Churyumov–Gerasimenko detected with the OSIRIS cameras on board Rosetta

Gicquel, A. and Vincent, J.B. and Agarwal, J. and A'Hearn, M. F. and Bertini, I. and Bodewits, Dennis and Sierks, H. and Lin, Z.-Y. and Barbieri, C. and Lamy, P. and Rodrigo, Rafael and Koschny, Detlef and Rickmann, H. and Keller, H.-U. and Barucci, M. A. and Bertaux, J.-L. and Besse, Sebastien and Cremonese, G. and Da Deppo, V. and Davidsson, B. and Debei, S. and Deller, J. and De Cecco, M. and Frattin, E. and El-Maarry, M. R. and Fornasier, S. and Fulle, M. and Groussin, Olivier and Gutierrez, P.J. and Gutiérrez-Marquez, P and Güttler, C. and Höfner, S. and Hofmann, Mathias and Hu, Xuan and Hviid, S. and Ip, W-H. 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 Masoumzadeh, Nafiseh and Massironi, Matteo and Moreno, F. and Mottola, S. and Naletto, G. and Oklay, N. and Pajola, M. and Pommerol, Antoine and Preusker, Frank and Scholten, Frank and Shi, X. and Thomas, N. and Toth, I. and Tubiana, C. (2016) Sublimation of icy aggregates in the coma of comet 67P/Churyumov–Gerasimenko detected with the OSIRIS cameras on board Rosetta. Monthly Notices of the Royal Astronomical Society. Oxford University Press. doi: 10.1093/mnras/stw2117. ISSN 0035-8711.

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Abstract

Beginning in 2014 March, the OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) cameras began capturing images of the nucleus and coma (gas and dust) of comet 67P/Churyumov–Gerasimenko using both the wide angle camera (WAC) and the narrow angle camera (NAC). The many observations taken since July of 2014 have been used to study the morphology, location, and temporal variation of the comet’s dust jets. We analysed the dust monitoring observations shortly after the southern vernal equinox on 2015 May 30 and 31 with the WAC at the heliocentric distance Rh = 1.53 AU, where it is possible to observe that the jet rotates with the nucleus. We found that the decline of brightness as a function of the distance of the jet is much steeper than the background coma, which is a first indication of sublimation. We adapted a model of sublimation of icy aggregates and studied the effect as a function of the physical properties of the aggregates (composition and size). The major finding of this paper was that through the sublimation of the aggregates of dirty grains (radius a between 5 and 50 μm) we were able to completely reproduce the radial brightness profile of a jet beyond 4 km from the nucleus. To reproduce the data, we needed to inject a number of aggregates between 8.5 × 10_13 and 8.5 × 10_10 for a = 5 and 50 μm, respectively, or an initial mass of H2O ice around 22 kg.

Item URL in elib:https://elib.dlr.de/108192/
Document Type:Article
Title:Sublimation of icy aggregates in the coma of comet 67P/Churyumov–Gerasimenko detected with the OSIRIS cameras on board Rosetta
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Gicquel, A.lesiaUNSPECIFIEDUNSPECIFIED
Vincent, J.B.max-planck-institut fuer sonnensystemforschung, germanyUNSPECIFIEDUNSPECIFIED
Agarwal, J.max-planck-institut für sonnensystemforschungUNSPECIFIEDUNSPECIFIED
A'Hearn, M. F.university of maryland, department of astronomy, maryland, usaUNSPECIFIEDUNSPECIFIED
Bertini, I.dipartimento di astronomia, università di padova, padova, italyUNSPECIFIEDUNSPECIFIED
Bodewits, Dennisdepartment of astronomy, university of maryland, college park, md 20742-2421, usaUNSPECIFIEDUNSPECIFIED
Sierks, H.max-planck-institut für sonnensystemforschung, katlenburg-lindau, germanyUNSPECIFIEDUNSPECIFIED
Lin, Z.-Y.national central university, jhongli, taoyuan, taiwanUNSPECIFIEDUNSPECIFIED
Barbieri, C.university of padova, padova, italyUNSPECIFIEDUNSPECIFIED
Lamy, P.laboratoire d'astronomie spatiale, marseille, franceUNSPECIFIEDUNSPECIFIED
Rodrigo, Rafaelinstituto de astrofisica de andaluciaUNSPECIFIEDUNSPECIFIED
Koschny, Detlefestec, the netherlandsUNSPECIFIEDUNSPECIFIED
Rickmann, H.10Department of Physics and Astronomy, Uppsala University, SwedenUNSPECIFIEDUNSPECIFIED
Keller, H.-U.max-planck-institut für aeronomie, katlenburg-lindauUNSPECIFIEDUNSPECIFIED
Barucci, M. A.observatoire de paris, meudon, franceUNSPECIFIEDUNSPECIFIED
Bertaux, J.-L.laboratoire atmosphères, milieux, observations spatiales, cnrs/uvsq/upmc, 11 boulevard d’alembert, 78280 guyancourt, franceUNSPECIFIEDUNSPECIFIED
Besse, Sebastienscientific support office, european space agency, 2201, noordwijk, netherlands.UNSPECIFIEDUNSPECIFIED
Cremonese, G.osservatorio astronomico, padova, italyUNSPECIFIEDUNSPECIFIED
Da Deppo, V.consiglio nazionale delle ricerche-istituto nazionale per la fisica della materia, luxor, padova, italyUNSPECIFIEDUNSPECIFIED
Davidsson, B.astronomiska observatoriet, uppsala, swedenUNSPECIFIEDUNSPECIFIED
Debei, S.università di padova, center of studies and activities of space (cisas) "g.colombo", padova, italyUNSPECIFIEDUNSPECIFIED
Deller, J.mpsUNSPECIFIEDUNSPECIFIED
De Cecco, M.università di padova, center of studies and activities of space (cisas) "g.colombo", padova, italyUNSPECIFIEDUNSPECIFIED
Frattin, E.INAF Osservatorio Astronomico di Padova, Padova, ItalyUNSPECIFIEDUNSPECIFIED
El-Maarry, M. R.physikalisches institut, sidlerstrasse 5, university of bern, ch-3012 bern, switzerlandUNSPECIFIEDUNSPECIFIED
Fornasier, S.observatoire de paris-meudon, franceUNSPECIFIEDUNSPECIFIED
Fulle, M.inaf - osservatorio astronomico di trieste, trieste, italyUNSPECIFIEDUNSPECIFIED
Groussin, Olivierlab. d'astrophysique de marseille, franceUNSPECIFIEDUNSPECIFIED
Gutierrez, P.J.iaa-csic, granada, spainUNSPECIFIEDUNSPECIFIED
Gutiérrez-Marquez, Pinstituto de astrofísica de andalucía (csic), granada, spainUNSPECIFIEDUNSPECIFIED
Güttler, C.max-planck-institut für sonnensystemforschungUNSPECIFIEDUNSPECIFIED
Höfner, S.max-planck-institut für sonnensystemforschung, göttingen, germanyUNSPECIFIEDUNSPECIFIED
Hofmann, MathiasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hu, Xuantampere university of technologyUNSPECIFIEDUNSPECIFIED
Hviid, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ip, W-H.institute for space science, national central university, chung li, taiwanUNSPECIFIEDUNSPECIFIED
Jorda, Llam, marseilleUNSPECIFIEDUNSPECIFIED
Knollenberg, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kovacs, G.max–planck–institut für sonnensystemforschung, justus–von–UNSPECIFIEDUNSPECIFIED
Kramm, J. R.max planck institute for solar systems research, katlenburg-lindau, germanyUNSPECIFIEDUNSPECIFIED
Kührt, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Küppers, Michaelmax-planck-institut für sonnensystemforschungUNSPECIFIEDUNSPECIFIED
Lara López, Luisa M.iaa-csic granada, spainUNSPECIFIEDUNSPECIFIED
Lazzarin, M.department of astronomy, university of paduaUNSPECIFIEDUNSPECIFIED
Lopez Moreno, J.instituto de astrofifica de andalucia-consejo superior de investigaciones cientificas, granada, spainUNSPECIFIEDUNSPECIFIED
Lowry, S.university of kent, canterbury, ukUNSPECIFIEDUNSPECIFIED
Marzari, F.università di padova, departimento di fisica, padova, italyUNSPECIFIEDUNSPECIFIED
Masoumzadeh, Nafisehmax planck institute for solar system research, katlenburg-lindau, germanyUNSPECIFIEDUNSPECIFIED
Massironi, Matteoinaf, padova, iUNSPECIFIEDUNSPECIFIED
Moreno, F.instituto de astrofísica de andalucía, consejo superior de investigaciones científicas (csic), p.o. box 3008, 18080 granada, spainUNSPECIFIEDUNSPECIFIED
Mottola, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Naletto, G.università di padova, departimento di elettronica et informatica, padova, italyUNSPECIFIEDUNSPECIFIED
Oklay, N.max-planck-institut für sonnensystemforschungUNSPECIFIEDUNSPECIFIED
Pajola, M.cisas - center for studies and activities for space, university of padovaUNSPECIFIEDUNSPECIFIED
Pommerol, Antoinephysikalisches institut, sidlerstrasse 5, university of bern, 3012, bern, switzerlandUNSPECIFIEDUNSPECIFIED
Preusker, FrankUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scholten, FrankUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shi, X.technical university berlin, germany ; shanghai astronomical observatory, shanghai, china,UNSPECIFIEDUNSPECIFIED
Thomas, N.max-planck-institut für aeronomie, katlenburg-lindauUNSPECIFIEDUNSPECIFIED
Toth, I.konkoly observatory, mta csfk csiUNSPECIFIEDUNSPECIFIED
Tubiana, C.max-planck-institut fuer sonnensystemforschung, germanyUNSPECIFIEDUNSPECIFIED
Date:2016
Journal or Publication Title:Monthly Notices of the Royal Astronomical Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1093/mnras/stw2117
Publisher:Oxford University Press
ISSN:0035-8711
Status:Published
Keywords:methods: data analysis methods: numerical methods: observational comets: individual: 67P/Churyumov–Gerasimenko
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project ROSETTA Instruments (old), R - Projekt ROSETTA Lander (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Schubert, Renate
Deposited On:24 Nov 2016 10:29
Last Modified:06 Sep 2019 15:17

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