Výsledky vyhledávání - "Jean-François Crifo"

The near-nucleus gas coma of comet 67P/Churyumov-Gerasimenko prior to the descent of the surface lander PHILAE

Autor: A.V. Rodionov, Vladimir Zakharov, Kathrin Altwegg, Martin Rubin, Jean-François Crifo

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 618, A71 (16 p.). ⟨10.1051/0004-6361/201832883⟩

Context. The European Space Agency (ESA) Rosetta mission was the most comprehensive study of a comet ever performed. In particular, the Rosetta orbiter, which carried many instruments for monitoring the evolution of the dusty gas emitted by the comet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2e44f06a5de7a5acdaf615810b3752e
https://hal.sorbonne-universite.fr/hal-01912247/document

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Asymptotics for spherical particle motion in a spherically expanding flow

Autor: Stavro Ivanovski, Alessandra Rotundi, V. Della Corte, Vladimir Zakharov, Jean-François Crifo, Marco Fulle

Publikováno v: Icarus
Icarus, Elsevier, 2018, 312, pp.121-127. ⟨10.1016/j.icarus.2018.04.030⟩

International audience; In the context of an increasing number of complex multiparametric dust coma models it was found convenient to construct an elementary model with a minimum number of parameters selected to represent the key processes acting on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5cb226de311dbf02c803c3b6c809eef
https://hal-insu.archives-ouvertes.fr/insu-01781284

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Dynamics of aspherical dust grains in a cometary atmosphere: I. Axially symmetric grains in a spherically symmetric atmosphere

Autor: Jean-François Crifo, Stavro Ivanovski, Alessandra Rotundi, Marco Fulle, V. V. Zakharov, V. Della Corte

Publikováno v: Icarus
Icarus, 2017, 282, pp.333-350. ⟨10.1016/j.icarus.2016.09.024⟩
Icarus, Elsevier, 2017, 282, pp.333-350. ⟨10.1016/j.icarus.2016.09.024⟩

International audience; In-situ measurements of individual dust grain parameters in the immediate vicinity of a cometary nucleus are being carried by the Rosetta spacecraft at comet 67P/Churyumov-Gerasimenko. For the interpretations of these observat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35bedb48ca4339fb4b325e341d66028b
https://insu.hal.science/insu-01370618

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67P/C-G Inner Coma dust properties from 2.2 au inbound to 2.0 au outbound to the Sun

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2016, 462 (Suppl. 1), pp.S210-S219. ⟨10.1093/mnras/stw2529⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2016, 462 (Suppl. 1), pp.S210-S219. ⟨10.1093/mnras/stw2529⟩
Digital.CSIC. Repositorio Institucional del CSIC
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GIADA (Grain Impact Analyzer and Dust Accumulator) on-board the Rosetta space probe is designed to measure the momentum, mass and speed of individual dust particles escaping the nucleus of comet 67P/Churyumov-Gerasimenko (hereafter 67P). From 2014 Au

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::589003e5a045150f1ffc3838dc142ebf
https://hal-insu.archives-ouvertes.fr/insu-01376669/document

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The prediction of the gas environment of the PHILAE probe during its 2014 descent to the nucleus of the comet 67P

Autor: A.V. Rodionov, G. A. Lukyanov, Jean-François Crifo, Vladimir Zakharov

Publikováno v: AIP Conference Proceedings 1786: 30th International Symposium on Rarefied Gas Dynamics
AIP Conference Proceedings 1786: 30th International Symposium on Rarefied Gas Dynamics, Jul 2016, Victoria, Canada. pp.160007, ⟨10.1063/1.4967664⟩

International audience; One of the objectives of the ESA ”ROSETTA” mission to the comet 67P was to insert, in August 2014, an orbiter probe around the so-called nucleus of the comet, and to deposit the ”PHILAE” lander at the surface of the nu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28ef3db616be68f090de53e329cf3265
https://insu.hal.science/insu-01422158

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Rosetta lander Philae: Flight dynamics analyses for landing site selection and post- landing operations

Publikováno v: Acta Astronautica
Acta Astronautica, 2016, 125, pp.65-79. ⟨10.1016/j.actaastro.2016.03.030⟩
Acta Astronautica, Elsevier, 2016, 125, pp.65-79. ⟨10.1016/j.actaastro.2016.03.030⟩

International audience; On the 12th of November 2014, The Rosetta Lander Philae became the first spacecraft to softly land on a comet nucleus. Due to the double failure of the cold gas hold-down thruster and the anchoring harpoons that should have fi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::038de72ef66e62566d58520890b1a613
https://hal-insu.archives-ouvertes.fr/insu-01302463

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Navier–Stokes and direct Monte-Carlo simulations of the circumnuclear gas coma

Autor: G. A. Lukyanov, Jean-François Crifo, A.V. Rodionov, V. Zakharov

Publikováno v: Icarus. 194:327-346

We pursue our program of comparative simulations of the cometary gas coma by the two most advanced techniques available: (1) numerical solution of Navier–Stokes equations coupled to the Boltzman equation in the surface boundary layer, and (2) direc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4cbfae5a907284268faa153f72d48b2
https://doi.org/10.1016/j.icarus.2007.08.038

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Dust measurements in the coma of comet 67P/Churyumov-Gerasimenko inbound to the sun

Autor: F. Lucarelli, Roberto Sordini, Stavro Ivanovski, Vito Mennella, Hans Rickman, M. Ferrari, Michael F. A'Hearn, Mark Leese, Vincenzo Della Corte, Bo Å. S. Gustafson, E. Bussoletti, Luisa Lara, Jean-Loup Bertaux, M. Antonietta Barucci, Laurent Jorda, Rafael Rodrigo, Ernesto Palomba, Dennis Bodewits, Philippe Lamy, Detlef Koschny, Stefano Debei, Paul R. Weissman, J. Knollenberg, Francesco Marzari, Jean-François Crifo, Nilda Oklay, Nicolas Thomas, Stephen C. Lowry, Marco Fulle, Carsten Güttler, H. U. Keller, L. Sabau, K. P. Wenzel, J. E. Rodriguez, Michael Küppers, Vladimir Zakharov, A. Molina, Pedro J. Gutiérrez, Gabriele Cremonese, F. Giovane, Cesare Barbieri, Mario Accolla, Antonio C. López-Jiménez, Sonia Fornasier, Francesco Angrilli, Ekkehard Kührt, Francesca Esposito, Harald Michalik, José Juan López-Moreno, Elena Mazzotta Epifani, Vania Da Deppo, Jessica Agarwal, José M. Jerónimo, Fernando Moreno, Eberhard Grün, M. Cosi, Ivano Bertini, Olivier Groussin, R. Morales, Pasquale Palumbo, Simon F. Green, Stubbe F. Hviid, Jose Luis Ortiz, R. Kramm, Alessandra Rotundi, John C. Zarnecki, Giampiero Naletto, J. Anthony M. McDonnell, Wing Ip, Mariolino De Cecco, Colin Snodgrass, Stefano Mottola, Jean-Marie Perrin, Luigi Colangeli, Nicolas Altobelli, Monica Lazzarin, Jean-Baptiste Vincent, Björn Davidsson, Cecilia Tubiana, M. Herranz, Holger Sierks

Publikováno v: Science (N. Y., N.Y.) 347 (2015). doi:10.1126/science.aaa3905
info:cnr-pdr/source/autori:Rotundi A.; Sierks H.; Della Corte V.; Fulle M.; Gutierrez P.J.; Lara L.; Barbieri C.; Lamy P.L.; Rodrigo R.; Koschny D.; Rickman H.; Keller H.U.; Lopez-Moreno J.J.; Accolla M.; Agarwal J.; A'Hearn M.F.; Altobelli N.; Angrilli F.; Barucci M.A.; Bertaux J.-L.; Bertini I.; Bodewits D.; Bussoletti E.; Colangeli L.; Cosi M.; Cremonese G.; Crifo J.-F.; Da Deppo V.; Davidsson B.; Debei S.; De Cecco M.; Esposito F.; Ferrari M.; Fornasier S.; Giovane F.; Gustafson B.; Green S.F.; Groussin O.; Grun E.; Guttler C.; Herranz M.L.; Hviid S.F.; Ip W.; Ivanovski S.; Jeronimo J.M.; Jorda L.; Knollenberg J.; Kramm R.; Kuhrt E.; Kuppers M.; Lazzarin M.; Leese M.R.; Lopez-Jimenez A.C.; Lucarelli F.; Lowry S.C.; Marzari F.; Epifani E.M.; McDonnell J.A.M.; Mennella V.; Michalik H.; Molina A.; Morales R.; Moreno F.; Mottola S.; Naletto G.; Oklay N.; Ortiz J.L.; Palomba E.; Palumbo P.; Perrin J.-M.; Rodriguez J.; Sabau L.; Snodgrass C.; Sordini R.; Thomas N.; Tubiana C.; Vincent J.-B.; Weissman P.; Wenzel K.-P.; Zakharov V.; Zarnecki J.C./titolo:Dust measurements in the coma of comet 67P%2FChuryumov-Gerasimenko inbound to the sun/doi:10.1126%2Fscience.aaa3905/rivista:Science (N. Y., N.Y.)/anno:2015/pagina_da:/pagina_a:/intervallo_pagine:/volume:347
Science
Science, American Association for the Advancement of Science, 2015, 347 (6220), aaa3905 (6 p.). ⟨10.1126/science.aaa3905⟩
Science, 2015, 347 (6220), aaa3905 (6 p.). ⟨10.1126/science.aaa3905⟩

Critical measurements for understanding accretion and the dust/gas ratio in the solar nebula, where planets were forming 4.5 billion years ago, are being obtained by the GIADA (Grain Impact Analyser and Dust Accumulator) experiment on the European Sp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a04c198559aeb121a624b9bbcd18fce3
http://www.cnr.it/prodotto/i/303718

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A new approach for modeling the dust dynamics in the near-nucleus coma

Autor: Jean-François Crifo, G. A. Lukyanov, V. Zakharov, A.V. Rodionov

Publikováno v: Advances in Space Research
Advances in Space Research, Elsevier, 2006, 38 (9), pp.1976-1982. ⟨10.1016/j.asr.2006.05.022⟩
Advances in Space Research, 2006, 38 (9), pp.1976-1982. ⟨10.1016/j.asr.2006.05.022⟩

G.A. Lukyanova, , J.F. Crifob, , V.V. Zakharova, c, , , and A.V. Rodionovd aCenter for Advanced Studies, St.-Petersburg State Polytechnical University, Polytechnicheskaya str., 29, 195251, St-Petersburg, Russia bCNRS, Service d'Aeronomie, BP 3, F 913

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5448259abf54637c1fd4d8dd2b7a127b
https://doi.org/10.1016/j.asr.2006.05.022

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