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Gas outflow and dust transport of comet 67P/Churyumov-Gerasimenko

Lai, Ian-Lin (author)
Natl Cent Univ, Inst Space Sci, 300 Zhongda Rd, Taoyuan 32001, Taiwan.
Ip, Wing-Huen (author)
Natl Cent Univ, Inst Space Sci, 300 Zhongda Rd, Taoyuan 32001, Taiwan.;Natl Cent Univ, Inst Astron, 300 Zhongda Rd, Taoyuan 32001, Taiwan.;Macau Univ Sci & Technol, Space Sci Inst, Taipa, Macau, Peoples R China.
Su, Cheng-Chin (author)
Natl Chiao Tung Univ, Dept Mech Engn, 1001 Univ Rd, Hsinchu 300, Taiwan.
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Wu, Jong-Shinn (author)
Natl Chiao Tung Univ, Dept Mech Engn, 1001 Univ Rd, Hsinchu 300, Taiwan.
Lee, Jui-Chi (author)
Natl Cent Univ, Dept Earth Sci, 300 Zhongda Rd, Taoyuan 32001, Taiwan.
Lin, Zhong-Yi (author)
Natl Cent Univ, Inst Astron, 300 Zhongda Rd, Taoyuan 32001, Taiwan.
Liao, Ying (author)
Univ Bern, Phys Inst, Sidlerstr 5, CH-3012 Bern, Switzerland.
Thomas, Nicolas (author)
Univ Bern, Phys Inst, Sidlerstr 5, CH-3012 Bern, Switzerland.
Sierks, Holger (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
Barbieri, Cesare (author)
Univ Padua, Dept Phys & Astron, Vicolo Osservatorio 3, I-35122 Padua, Italy.
Lamy, Philippe (author)
Aix Marseille Univ, CNRS, LAM, UMR 7326, 38 Rue Frederic Joliot Curie, F-13388 Marseille, France.
Rodrigo, Rafael (author)
CSIC, INTA, Ctr Astrobiol, E-28850 Madrid, Spain.;Int Space Sci Inst, Hallerstr 6, CH-3012 Bern, Switzerland.
Koschny, Detlef (author)
ESA, European Space Res & Technol Ctr, Sci Support Off, Keplerlaan 1,Postbus 299, NL-2201 AG Noordwijk, Netherlands.
Rickman, Hans (author)
Uppsala universitet,Teoretisk astrofysik,PAS Space Res Ctr, Poland
Keller, Horst Uwe (author)
Tech Univ Carolo Wilhelmina Braunschweig, IGEP, Mendelssohnstr 3, D-38106 Braunschweig, Germany.
Agarwal, Jessica (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
A'Hearn, Michael F. (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.;Univ Maryland, Dept Astron, College Pk, MD 20742 USA.;Akad Wissensch Gottingen, Gottingen, Germany.
Barucci, Maria Antonella (author)
Univ Paris Diderot, Univ Pierre & Marie Curie, CNRS, LESIA,Observ Paris, 5 Pl J Janssen, F-92195 Meudon, France.
Bertaux, Jean-Loup (author)
CNR, IFN UOS Padova LUXOR, Via Trasea 7, I-35131 Padua, Italy.
Bertini, Ivano (author)
Univ Padua, CISAS, Ctr Studies & Act Space G Colombo, Padua, Italy.
Boudreault, Steven (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
Cremonese, Gabriele (author)
INAF, Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy.
Da Deppo, Vania (author)
CNR, IFN UOS Padova LUXOR, Via Trasea 7, I-35131 Padua, Italy.
Davidsson, Björn (author)
Uppsala universitet,Teoretisk astrofysik
Debei, Stefano (author)
Univ Padua, Dept Ind Engn, Via Venezia 1, I-35131 Padua, Italy.
De Cecco, Mariolino (author)
Univ Trento, Via Mesiano 77, I-38100 Trento, Italy.
Deller, Jakob (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
Fornasier, Sonia (author)
Univ Paris Diderot, Univ Pierre & Marie Curie, CNRS, LESIA,Observ Paris, 5 Pl J Janssen, F-92195 Meudon, France.
Fulle, Marco (author)
INAF, Osservatorio Astron, Via Tiepolo 11, I-34014 Trieste, Italy.
Groussin, Olivier (author)
Aix Marseille Univ, CNRS, LAM, UMR 7326, 38 Rue Frederic Joliot Curie, F-13388 Marseille, France.
Gutierrez, Pedro J. (author)
CSIC, Inst Astrofis Andalucia, Glorieta Astron, E-18008 Granada, Spain.
Guttler, Carsten (author)
Univ Bern, Phys Inst, Sidlerstr 5, CH-3012 Bern, Switzerland.
Hofmann, Marc (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
Hviid, Stubbe F. (author)
Univ Bern, Phys Inst, Sidlerstr 5, CH-3012 Bern, Switzerland.
Jorda, Laurent (author)
Aix Marseille Univ, CNRS, LAM, UMR 7326, 38 Rue Frederic Joliot Curie, F-13388 Marseille, France.
Knollenberg, J. Org (author)
Kovacs, Gabor (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
Kramm, J. -Rainer (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
Kuhrt, Ekkehard (author)
Deutsch Zentrum Luft & Raumfahrt DLR, Inst Planeten Forsch, Rutherfordstr 2, D-12489 Berlin, Germany.
Kuppers, Michael (author)
ESA, European Space Astron Ctr, Operat Dept, POB 78, E-28691 Madrid, Spain.
Lara, Luisa M. (author)
CSIC, Inst Astrofis Andalucia, Glorieta Astron, E-18008 Granada, Spain.
Lazzarin, Monica (author)
Univ Padua, Dept Phys & Astron, Vicolo Osservatorio 3, I-35122 Padua, Italy.
Moreno, Jose J. Lopez (author)
Marzari, Francesco (author)
Univ Padua, Dept Phys & Astron, Vicolo Osservatorio 3, I-35122 Padua, Italy.
Naletto, Giampiero (author)
Univ Padua, Dept Informat Engn, Via Gradenigo 6-B, I-35131 Padua, Italy.
Oklay, Nilda (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
Shi, Xian (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
Tubiana, Cecilia (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
Vincent, Jean-Baptiste (author)
Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany.
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Natl Cent Univ, Inst Space Sci, 300 Zhongda Rd, Taoyuan 32001, Taiwan Natl Cent Univ, Inst Space Sci, 300 Zhongda Rd, Taoyuan 32001, Taiwan.;Natl Cent Univ, Inst Astron, 300 Zhongda Rd, Taoyuan 32001, Taiwan.;Macau Univ Sci & Technol, Space Sci Inst, Taipa, Macau, Peoples R China. (creator_code:org_t)
2017-02-08
2016
English.
In: Monthly notices of the Royal Astronomical Society. - : OXFORD UNIV PRESS. - 0035-8711 .- 1365-2966. ; 462, s. S533-S546
Related links:
https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Because of the diurnal thermal cycle and the irregular shape of the nucleus, gas outflow of comet 67P/Churyumov-Gerasimenko could be highly anisotropic as indicated by the colliminated dust jet structures on the sunlit side. Based on the OSIRIS imaging observations of the outgassing effect, a simple model of surface sublimation can be constructed by taking into account the dependence on the solar insolation. With preliminary information on the time variability of the global gas production rate, a sequence of gas coma models can be generated at different epochs before and after perihelion. We also investigate different patterns of dust particle dynamics under the influences of nuclear rotation and gas drag. From these considerations, a consistent picture of the spatial distribution of dusty materials across the surface of comet 67P as it moves around the perihelion can be developed. It is found that because of the redeposition of the ejected dust from the Southern hemisphere to the Northern hemisphere during the southern summer season the Hapi region could gain up to 0.4 m while the Wosret region would lose up to 1.8 m of dust mantle per orbit.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

methods: numerical
comets: general
comets: individual: comet 67P/Churyumov-Gerasimenko

Publication and Content Type

ref (subject category)
art (subject category)

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