elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Evolution of the Dust Size Distribution of Comet 67P/Churyumov-Gerasimenko from 2.2. AU to Perihelion

Fulle, M. and Marzari, F. and Della Corte, Vincenzo and Fornasier, S. and Sierks, H. and Rotundi, A. and Barbieri, C. and Lamy, P. and Rodrigo, Rafael and Koschny, Detlef and Rickman, Hans and Keller, H. U. and Lopez-Moreno, J. and Accolla, Mario and Agarwal, J. and A'Hearn, M. F. and Altobelli, N. and Barucci, M. A. and Bertaux, J.-L. and Bertini, I. and Bodewits, Dennis and Bussoletti, E. and Colangeli, L. and Cosi, Massimo and Cremonese, G. and Crifo, Jean-Francois and Da Deppo, V. and Davidsson, B. and Debei, S. and De Cecco, M. and Esposito, F. and Ferrari, M. and Giovane, F. and Gustafson, B.A.S. and Green, S. F. and Groussin, Olivier and Grün, E. and Gutierrez, P.J. and Güttler, C. and Herranz, M. and Hviid, S. and Ip, W-H. and Ivanovski, S. and Jerónimo, J. and Jorda, L and Knollenberg, J. and Kramm, J. R. and Kührt, E. and Küppers, Michael and Lara López, Luisa M. and Lazzarin, M. and Leese, M. R. and López-Jiménez, Antonio and Lucarelli, F. and Mazzotta Epifani, E. and McDonnell, A. M. and Mennella, V. and Molina, Antonio and Morales, R. and Moreno, F. and Mottola, S. and Naletto, G. and Oklay, N. and Ortiz Moreno, Jose Luis and Palomba, E. and Palumbo, P. and Perrin, J.-M. and Sordini, R. and Rodriguez, Jonathan and Thomas, N. and Tubiana, C. and Vincent, J.B. and Weissman, P. and Wenzel, K.-P. and Zakharov, A. and Zarnecki, J. C. (2016) Evolution of the Dust Size Distribution of Comet 67P/Churyumov-Gerasimenko from 2.2. AU to Perihelion. The Astrophysical Journal, 821 (1). American Astronomical Society. DOI: 10.3847/0004-637X/821/1/19 ISSN 0004-637X

[img] PDF - Registered users only
1MB

Abstract

The Rosetta probe, orbiting Jupiter-family comet 67P/Churyumov–Gerasimenko, has been detecting individual dust particles of mass larger than 10−10 kg by means of the GIADA dust collector and the OSIRIS Wide Angle Camera and Narrow Angle Camera since 2014 August and will continue until 2016 September. Detections of single dust particles allow us to estimate the anisotropic dust flux from 67P, infer the dust loss rate and size distribution at the surface of the sunlit nucleus, and see whether the dust size distribution of 67P evolves in time. The velocity of the Rosetta orbiter, relative to 67P, is much lower than the dust velocity measured by GIADA, thus dust counts when GIADA is nadir-pointing will directly provide the dust flux. In OSIRIS observations, the dust flux is derived from the measurement of the dust space density close to the spacecraft. Under the assumption of radial expansion of the dust, observations in the nadir direction provide the distance of the particles by measuring their trail length, with a parallax baseline determined by the motion of the spacecraft. The dust size distribution at sizes >1 mm observed by OSIRIS is consistent with a differential power index of −4, which was derived from models of 67P's trail. At sizes <1 mm, the size distribution observed by GIADA shows a strong time evolution, with a differential power index drifting from −2 beyond 2 au to −3.7 at perihelion, in agreement with the evolution derived from coma and tail models based on ground-based data. The refractory-to-water mass ratio of the nucleus is close to six during the entire inbound orbit and at perihelion.

Item URL in elib:https://elib.dlr.de/109931/
Document Type:Article
Title:Evolution of the Dust Size Distribution of Comet 67P/Churyumov-Gerasimenko from 2.2. AU to Perihelion
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fulle, M.inaf - osservatorio astronomico di trieste, trieste, italyUNSPECIFIED
Marzari, F.università di padova, departimento di fisica, padova, italyUNSPECIFIED
Della Corte, Vincenzoinaf-iaps, roma, italyUNSPECIFIED
Fornasier, S.observatoire de paris-meudon, franceUNSPECIFIED
Sierks, H.max-planck-institut für sonnensystemforschung, katlenburg-lindau, germanyUNSPECIFIED
Rotundi, A.university of naples, naples, italyUNSPECIFIED
Barbieri, C.university of padova, padova, italyUNSPECIFIED
Lamy, P.laboratoire d'astronomie spatiale, marseille, franceUNSPECIFIED
Rodrigo, Rafaelinstituto de astrofisica de andaluciaUNSPECIFIED
Koschny, Detlefestec, the netherlandsUNSPECIFIED
Rickman, Hansuppsala astronomical observatoryUNSPECIFIED
Keller, H. U.max-planck-institut für sonnensystemforschung, katlenburg-lindauUNSPECIFIED
Lopez-Moreno, J.instituto de astrofisica de andaluciaUNSPECIFIED
Accolla, Marioistituto di astrofisica e planetologia spaziali, istituto nazionale di astrofisica (inaf), via fosso del cavaliere, 100, 0133 rome, italyUNSPECIFIED
Agarwal, J.max-planck-institut für sonnensystemforschungUNSPECIFIED
A'Hearn, M. F.university of maryland, department of astronomy, maryland, usaUNSPECIFIED
Altobelli, N.esac, madrid, spainUNSPECIFIED
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
Bussoletti, E.inaf osservatorio astronomico di capodimonte, napoli, italyUNSPECIFIED
Colangeli, L.osservatiori astronomico di capodimonte, italyUNSPECIFIED
Cosi, Massimoselex-es, via albert einstein, 35, 50013 campi bisenzio, firenze, italyUNSPECIFIED
Cremonese, G.osservatorio astronomico, padova, italyUNSPECIFIED
Crifo, Jean-Francoislaboratoire atmosphères, milieux, observations spatiales, cnrs/université de versailles saint-quentin-en-yvelines/institut pierre-simon laplace, 11 boulevard d’alembert, 78280 guyancourt, franceUNSPECIFIED
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
Esposito, F.inaf – osservatorio astronomico di capodimonte (inaf-oac), napoli, italyUNSPECIFIED
Ferrari, M.l'aquila medical school, italyUNSPECIFIED
Giovane, F.virginia polytechnic institute and state university, blacksburg, va 24061, usaUNSPECIFIED
Gustafson, B.A.S.university of florida, gainesville, usaUNSPECIFIED
Green, S. F.open university, milton keynes, ukUNSPECIFIED
Groussin, Olivierlab. d'astrophysique de marseille, franceUNSPECIFIED
Grün, E.max-planck-institut für kernphysik, heidelberg; higp, university of hawaii, honolulu, hiUNSPECIFIED
Gutierrez, P.J.iaa-csic, granada, spainUNSPECIFIED
Güttler, C.max-planck-institut für sonnensystemforschungUNSPECIFIED
Herranz, M.iaa-csic, granada, spainUNSPECIFIED
Hviid, S.stubbe.hviid (at) dlr.deUNSPECIFIED
Ip, W-H.institute for space science, national central university, chung li, taiwanUNSPECIFIED
Ivanovski, S.istituto di astrofisica e planetologia spaziali, istituto nazionale di astrofisica (inaf), via fosso del cavaliere, 100, 0133 rome, italyUNSPECIFIED
Jerónimo, J.instituto de astrofísica de andalucía, consejo superior de investigaciones científicas (csic), p.o. box 3008, 18080 granada, spainUNSPECIFIED
Jorda, Llam, marseilleUNSPECIFIED
Knollenberg, J.joerg.knollenberg (at) dlr.deUNSPECIFIED
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
Leese, M. R.open university, milton keynes, ukUNSPECIFIED
López-Jiménez, Antonioinstituto de astrofísica de andalucía, consejo superior de investigaciones científicas (csic), p.o. box 3008, 18080 granada, spainUNSPECIFIED
Lucarelli, F.università degli studi di napoli “parthenope,” dipartimento di scienze e tecnologie, cdn ic4, 80143 naples, italyUNSPECIFIED
Mazzotta Epifani, E.inaf-oac, napoli, italyUNSPECIFIED
McDonnell, A. M.planetary and space science research institute, open university, milton keynes, ukUNSPECIFIED
Mennella, V.inaf-oac, napoli, italyUNSPECIFIED
Molina, Antoniocentro de astrobiologia (csic-inta), madrid, spainUNSPECIFIED
Morales, R.instituto de astrofísica de andalucía, consejo superior de investigaciones científicas (csic), p.o. box 3008, 18080 granada, spainUNSPECIFIED
Moreno, F.instituto de astrofísica de andalucía, consejo superior de investigaciones científicas (csic), p.o. box 3008, 18080 granada, spainUNSPECIFIED
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
Ortiz Moreno, Jose Luisiaa-csic granada, spainUNSPECIFIED
Palomba, E.institute for interplanetary space physics - inaf, rome, italyUNSPECIFIED
Palumbo, P.osservatorio di capodimonte, napoli, italyUNSPECIFIED
Perrin, J.-M.laboratoire atmosphères, milieux, observations spatiales, cnrs/université de versailles saint-quentin-en-yvelines/institut pierre-simon laplace, 11 boulevard d’alembert, 78280 guyancourt, franceUNSPECIFIED
Sordini, R.istituto di astrofisica e planetologia spaziali, istituto nazionale di astrofisica (inaf), via fosso del cavaliere, 100, 0133 rome, italyUNSPECIFIED
Rodriguez, Jonathaninstituto telecomunicaçõesUNSPECIFIED
Thomas, N.max-planck-institut für aeronomie, katlenburg-lindauUNSPECIFIED
Tubiana, C.max-planck-institut fuer sonnensystemforschung, germanyUNSPECIFIED
Vincent, J.B.max-planck-institut fuer sonnensystemforschung, germanyUNSPECIFIED
Weissman, P.jpl, pasadena, usaUNSPECIFIED
Wenzel, K.-P.european space and technology centre, noordwijk, netherlandsUNSPECIFIED
Zakharov, A.space research institute, moscow, russiaUNSPECIFIED
Zarnecki, J. C.open university, milton keynes, ukUNSPECIFIED
Date:2016
Journal or Publication Title:The Astrophysical Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:821
DOI :10.3847/0004-637X/821/1/19
Publisher:American Astronomical Society
ISSN:0004-637X
Status:Published
Keywords:Rosetta, comet 67P/Churyumov–Gerasimenko,GIADA, OSIRIS
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, R - Projekt PROSIRIS
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Schubert, Renate
Deposited On:22 Dec 2016 09:22
Last Modified:06 Sep 2019 15:30

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.