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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.
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AbstractThe 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/ |
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Document Type: | Article |
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Title: | Evolution of the Dust Size Distribution of Comet 67P/Churyumov-Gerasimenko from 2.2. AU to Perihelion |
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Authors: | Authors | Institution or Email of Authors | Author's ORCID iD | ORCID Put Code |
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Fulle, M. | inaf - osservatorio astronomico di trieste, trieste, italy | UNSPECIFIED | UNSPECIFIED | Marzari, F. | università di padova, departimento di fisica, padova, italy | UNSPECIFIED | UNSPECIFIED | Della Corte, Vincenzo | inaf-iaps, roma, italy | UNSPECIFIED | UNSPECIFIED | Fornasier, S. | observatoire de paris-meudon, france | UNSPECIFIED | UNSPECIFIED | Sierks, H. | max-planck-institut für sonnensystemforschung, katlenburg-lindau, germany | UNSPECIFIED | UNSPECIFIED | Rotundi, A. | university of naples, naples, italy | UNSPECIFIED | UNSPECIFIED | Barbieri, C. | university of padova, padova, italy | UNSPECIFIED | UNSPECIFIED | Lamy, P. | laboratoire d'astronomie spatiale, marseille, france | UNSPECIFIED | UNSPECIFIED | Rodrigo, Rafael | instituto de astrofisica de andalucia | UNSPECIFIED | UNSPECIFIED | Koschny, Detlef | estec, the netherlands | UNSPECIFIED | UNSPECIFIED | Rickman, Hans | uppsala astronomical observatory | UNSPECIFIED | UNSPECIFIED | Keller, H. U. | max-planck-institut für sonnensystemforschung, katlenburg-lindau | UNSPECIFIED | UNSPECIFIED | Lopez-Moreno, J. | instituto de astrofisica de andalucia | UNSPECIFIED | UNSPECIFIED | Accolla, Mario | istituto di astrofisica e planetologia spaziali, istituto nazionale di astrofisica (inaf), via fosso del cavaliere, 100, 0133 rome, italy | UNSPECIFIED | UNSPECIFIED | Agarwal, J. | max-planck-institut für sonnensystemforschung | UNSPECIFIED | UNSPECIFIED | A'Hearn, M. F. | university of maryland, department of astronomy, maryland, usa | UNSPECIFIED | UNSPECIFIED | Altobelli, N. | esac, madrid, spain | UNSPECIFIED | UNSPECIFIED | Barucci, M. A. | observatoire de paris, meudon, france | UNSPECIFIED | UNSPECIFIED | Bertaux, J.-L. | laboratoire atmosphères, milieux, observations spatiales, cnrs/uvsq/upmc, 11 boulevard d’alembert, 78280 guyancourt, france | UNSPECIFIED | UNSPECIFIED | Bertini, I. | dipartimento di astronomia, università di padova, padova, italy | UNSPECIFIED | UNSPECIFIED | Bodewits, Dennis | department of astronomy, university of maryland, college park, md 20742-2421, usa | UNSPECIFIED | UNSPECIFIED | Bussoletti, E. | inaf osservatorio astronomico di capodimonte, napoli, italy | UNSPECIFIED | UNSPECIFIED | Colangeli, L. | osservatiori astronomico di capodimonte, italy | UNSPECIFIED | UNSPECIFIED | Cosi, Massimo | selex-es, via albert einstein, 35, 50013 campi bisenzio, firenze, italy | UNSPECIFIED | UNSPECIFIED | Cremonese, G. | osservatorio astronomico, padova, italy | UNSPECIFIED | UNSPECIFIED | Crifo, Jean-Francois | laboratoire atmosphères, milieux, observations spatiales, cnrs/université de versailles saint-quentin-en-yvelines/institut pierre-simon laplace, 11 boulevard d’alembert, 78280 guyancourt, france | UNSPECIFIED | UNSPECIFIED | Da Deppo, V. | consiglio nazionale delle ricerche-istituto nazionale per la fisica della materia, luxor, padova, italy | UNSPECIFIED | UNSPECIFIED | Davidsson, B. | astronomiska observatoriet, uppsala, sweden | UNSPECIFIED | UNSPECIFIED | Debei, S. | università di padova, center of studies and activities of space (cisas) "g.colombo", padova, italy | UNSPECIFIED | UNSPECIFIED | De Cecco, M. | università di padova, center of studies and activities of space (cisas) "g.colombo", padova, italy | UNSPECIFIED | UNSPECIFIED | Esposito, F. | inaf – osservatorio astronomico di capodimonte (inaf-oac), napoli, italy | UNSPECIFIED | UNSPECIFIED | Ferrari, M. | l'aquila medical school, italy | UNSPECIFIED | UNSPECIFIED | Giovane, F. | virginia polytechnic institute and state university, blacksburg, va 24061, usa | UNSPECIFIED | UNSPECIFIED | Gustafson, B.A.S. | university of florida, gainesville, usa | UNSPECIFIED | UNSPECIFIED | Green, S. F. | open university, milton keynes, uk | UNSPECIFIED | UNSPECIFIED | Groussin, Olivier | lab. d'astrophysique de marseille, france | UNSPECIFIED | UNSPECIFIED | Grün, E. | max-planck-institut für kernphysik, heidelberg; higp, university of hawaii, honolulu, hi | UNSPECIFIED | UNSPECIFIED | Gutierrez, P.J. | iaa-csic, granada, spain | UNSPECIFIED | UNSPECIFIED | Güttler, C. | max-planck-institut für sonnensystemforschung | UNSPECIFIED | UNSPECIFIED | Herranz, M. | iaa-csic, granada, spain | UNSPECIFIED | UNSPECIFIED | Hviid, S. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Ip, W-H. | institute for space science, national central university, chung li, taiwan | UNSPECIFIED | UNSPECIFIED | Ivanovski, S. | istituto di astrofisica e planetologia spaziali, istituto nazionale di astrofisica (inaf), via fosso del cavaliere, 100, 0133 rome, italy | UNSPECIFIED | UNSPECIFIED | Jerónimo, J. | instituto de astrofísica de andalucía, consejo superior de investigaciones científicas (csic), p.o. box 3008, 18080 granada, spain | UNSPECIFIED | UNSPECIFIED | Jorda, L | lam, marseille | UNSPECIFIED | UNSPECIFIED | Knollenberg, J. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Kramm, J. R. | max planck institute for solar systems research, katlenburg-lindau, germany | UNSPECIFIED | UNSPECIFIED | Kührt, E. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Küppers, Michael | max-planck-institut für sonnensystemforschung | UNSPECIFIED | UNSPECIFIED | Lara López, Luisa M. | iaa-csic granada, spain | UNSPECIFIED | UNSPECIFIED | Lazzarin, M. | department of astronomy, university of padua | UNSPECIFIED | UNSPECIFIED | Leese, M. R. | open university, milton keynes, uk | UNSPECIFIED | UNSPECIFIED | López-Jiménez, Antonio | instituto de astrofísica de andalucía, consejo superior de investigaciones científicas (csic), p.o. box 3008, 18080 granada, spain | UNSPECIFIED | UNSPECIFIED | Lucarelli, F. | università degli studi di napoli “parthenope,” dipartimento di scienze e tecnologie, cdn ic4, 80143 naples, italy | UNSPECIFIED | UNSPECIFIED | Mazzotta Epifani, E. | inaf-oac, napoli, italy | UNSPECIFIED | UNSPECIFIED | McDonnell, A. M. | planetary and space science research institute, open university, milton keynes, uk | UNSPECIFIED | UNSPECIFIED | Mennella, V. | inaf-oac, napoli, italy | UNSPECIFIED | UNSPECIFIED | Molina, Antonio | centro de astrobiologia (csic-inta), madrid, spain | UNSPECIFIED | UNSPECIFIED | Morales, R. | instituto de astrofísica de andalucía, consejo superior de investigaciones científicas (csic), p.o. box 3008, 18080 granada, spain | UNSPECIFIED | UNSPECIFIED | Moreno, F. | instituto de astrofísica de andalucía, consejo superior de investigaciones científicas (csic), p.o. box 3008, 18080 granada, spain | UNSPECIFIED | UNSPECIFIED | Mottola, S. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Naletto, G. | università di padova, departimento di elettronica et informatica, padova, italy | UNSPECIFIED | UNSPECIFIED | Oklay, N. | max-planck-institut für sonnensystemforschung | UNSPECIFIED | UNSPECIFIED | Ortiz Moreno, Jose Luis | iaa-csic granada, spain | UNSPECIFIED | UNSPECIFIED | Palomba, E. | institute for interplanetary space physics - inaf, rome, italy | UNSPECIFIED | UNSPECIFIED | Palumbo, P. | osservatorio di capodimonte, napoli, italy | UNSPECIFIED | UNSPECIFIED | 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, france | UNSPECIFIED | UNSPECIFIED | Sordini, R. | istituto di astrofisica e planetologia spaziali, istituto nazionale di astrofisica (inaf), via fosso del cavaliere, 100, 0133 rome, italy | UNSPECIFIED | UNSPECIFIED | Rodriguez, Jonathan | instituto telecomunicações | UNSPECIFIED | UNSPECIFIED | Thomas, N. | max-planck-institut für aeronomie, katlenburg-lindau | UNSPECIFIED | UNSPECIFIED | Tubiana, C. | max-planck-institut fuer sonnensystemforschung, germany | UNSPECIFIED | UNSPECIFIED | Vincent, J.B. | max-planck-institut fuer sonnensystemforschung, germany | UNSPECIFIED | UNSPECIFIED | Weissman, P. | jpl, pasadena, usa | UNSPECIFIED | UNSPECIFIED | Wenzel, K.-P. | european space and technology centre, noordwijk, netherlands | UNSPECIFIED | UNSPECIFIED | Zakharov, A. | space research institute, moscow, russia | UNSPECIFIED | UNSPECIFIED | Zarnecki, J. C. | open university, milton keynes, uk | UNSPECIFIED | UNSPECIFIED |
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Date: | 2016 |
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Journal or Publication Title: | The Astrophysical Journal |
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Refereed publication: | Yes |
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Open Access: | No |
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Gold Open Access: | No |
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In SCOPUS: | Yes |
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In ISI Web of Science: | Yes |
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Volume: | 821 |
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DOI: | 10.3847/0004-637X/821/1/19 |
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Publisher: | American Astronomical Society |
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ISSN: | 0004-637X |
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Status: | Published |
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Keywords: | Rosetta, comet 67P/Churyumov–Gerasimenko,GIADA, OSIRIS |
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HGF - Research field: | Aeronautics, Space and Transport |
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HGF - Program: | Space |
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HGF - Program Themes: | Space Exploration |
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DLR - Research area: | Raumfahrt |
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DLR - Program: | R EW - Space Exploration |
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DLR - Research theme (Project): | R - Project ROSETTA Instruments (old), R - Projekt ROSETTA Lander (old), R - Projekt PROSIRIS (old) |
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Location: |
Berlin-Adlershof
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Institutes and Institutions: | Institute of Planetary Research > Asteroids and Comets |
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Deposited By: |
Schubert, Renate
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Deposited On: | 22 Dec 2016 09:22 |
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Last Modified: | 06 Sep 2019 15:30 |
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