Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko

NCU Institutional Repository > 理學院 > 天文研究所 > 期刊論文 > Item 987654321/101907

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://ir.lib.ncu.edu.tw/handle/987654321/101907

题名:	Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko
作者:	葉永烜;Lin, Z.-Y.;Lai, I.-L.;Su, C.-C.;Ip, W.-H.;Lee, J.-C.;Wu, J.-S.;Vincent, J.-B.;La Forgia, F.;Sierks, H.;Barbieri, C.;Lamy, P. L.;Rodrigo, R.;Koschny, D.;Rickman, H.;Keller, H. U.;Agarwal, J.;A’Hearn, M. F.;Barucci, M. A.;Bertaux, J.–L.;Bertini, I.;Bodewits, D.;Cremonese, G.;Da Deppo, V.;Davidsson, B.;Debei, S.;De Cecco, M.;Fornasier, S.;Fulle, M.;Groussin, O.;Gutiérrez, P. J.;Güttler, C.;Hviid, S. F.;Jorda, L.;Knollenberg, J.;Kovacs, G.;Kramm, J.-R.;Kührt, E.;Küppers, M.;Lara, L. M.;Lazzarin, M.;López-Moreno, J. J.;Lowry, S.;Marzari, F.;Michalik, H.;Mottola, S.;Naletto, G.;Oklay, N.;Pajola, M.;Rożek, A.;Thomas, N.;Tubiana, C.
贡献者:	理學院天文研究所
关键词:	Astrophysics;Comet heads;Comet nuclei;Comets;comets: individual: 67P/Churyumov-Gerasimenko;Curved;Dust;Earth and Planetary Astrophysics;Nuclei;Sciences of the Universe;Solar and Stellar Astrophysics;Spirals;Viscous drag
日期:	2016-04-01
上传时间:	2026-04-21 14:50:47 (UTC+8)
出版者:	EDP Sciences
摘要:	摘要： Aims. We analyze the physical properties and dynamical origin of a curved jet of comet 67P/Churyumov-Gerasimenko that was observed repeatedly in several nucleus rotations starting on May 30 and persisting until early August, 2015. Methods. We simulated the motion of dust grains ejected from the nucleus surface under the influence of the gravity and viscous drag effect of the expanding gas flow from the rotating nucleus. Results. The formation of the curved jet is a combination of the size of the dust particles (~0.1−1 mm) and the location of the source region near the nucleus equator. This enhances the spiral feature of the collimated dust stream after the dust is accelerated to a terminal speed on the order of m s-1. 出版者： EDP Sciences 出版日期： 2016-04-01 出處： Astronomy and astrophysics (Berlin), 2016-04, Vol.588, p.L3 資源來源： EDP Sciences 版權： licence_http://creativecommons.org/publicdomain/zero 識別號： ISSN: 0004-6361 識別號： ISSN: 1432-0746 識別號： EISSN: 1432-0746 識別號： DOI: 10.1051/0004-6361/201527784
显示于类别:	[天文研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	26	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....