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Mutual events between Galilean satellites observed with SARA 0.9 m and 0.6 m telescopes during 2014-15
Zhang XL(张西亮)1,2,3; Han, X. L.4; Arlot, J. E.5
发表期刊Monthly Notices of the Royal Astronomical Society
2019
卷号483页码:4518–4524
DOI10.1093/mnras/sty3030
产权排序第1完成单位
收录类别SCI
关键词techniques: photometric eclipses ephemerides occultations
摘要

Observation of mutual events has been confirmed to be a most effective and accurate ground-based method for obtaining accurate astrometric data by fitting the flux variation of involved satellites during the events, which is very invaluable for improving the orbital models of the natural satellites. The mutual events between the Galilean satellites occur every six years. During the observational campaign of 2014-15, 21 mutual events between Galilean satellites were observed with the SARA 0.9 m and 0.6 m telescopes. The model proposed by M. Assafin et al. (2009) and Zhang et al. (2011) for mutual occultation and Zhang et al. (2011) for mutual eclipse were used to fit the light curves, taking the Lommel-Seeliger scattering law (Surdej and Surdej, 1978) and the solar limb darkening into account. In this paper, the astrometric results of the Galilean satellites from the mutual events we observed will be shown, such as the impact parameter and its corresponding mid-time, and the velocity of occulting/eclipsing satellite relative to the occulted/eclipsed one.

语种英语
学科领域实测天体物理学 ; 照相天体测量学 ; 太阳系形成与演化 ; 行星物理学
学科门类理学::天文学
文章类型Article
出版者Oxford University Press
ISSN0035-8711
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/18660
专题丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
通讯作者Zhang XL(张西亮)
作者单位1.Yunnan Observatories (YNAO), Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
3.CAS Key Laboratory of Planetary Sciences, Nanjing 210008, China
4.Dept. of Physics and Astronomy, Butler University, Indianapolis, IN 46208, USA
5.Institut de mecanique celeste et de calcul des ephemerides, Observatoire de Paris, UMR 8028 du CNRS, 77 avenue Denfert-Rochereau, F-75014 Paris, France
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GB/T 7714
Zhang XL,Han, X. L.,Arlot, J. E.. Mutual events between Galilean satellites observed with SARA 0.9 m and 0.6 m telescopes during 2014-15[J]. Monthly Notices of the Royal Astronomical Society,2019,483:4518–4524.
APA Zhang XL,Han, X. L.,&Arlot, J. E..(2019).Mutual events between Galilean satellites observed with SARA 0.9 m and 0.6 m telescopes during 2014-15.Monthly Notices of the Royal Astronomical Society,483,4518–4524.
MLA Zhang XL,et al."Mutual events between Galilean satellites observed with SARA 0.9 m and 0.6 m telescopes during 2014-15".Monthly Notices of the Royal Astronomical Society 483(2019):4518–4524.
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