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Asteroid lightcurve inversion with Lommel-Seeliger ellipsoids
Muinonen, Karri1,2; Wilkman, Olli1; Cellino, Alberto3; Wang XB(王晓彬)4; Wang YB(王夷博)4; Muinonen, K (reprint author), Univ Helsinki, Dept Phys, Gustaf Hallstromin Katu 2a,POB 64, FI-00014 Helsinki, Finland
发表期刊PLANETARY AND SPACE SCIENCE
2015-12-01
卷号118页码:227-241
DOI10.1016/j.pss.2015.09.005
产权排序第4完成单位
收录类别SCI
关键词Asteroids Near-earth Objects Lightcurve Inversion Lommel-seeliger Ellipsoid Lommel-seeliger Reflection Coefficient Particulate-medium Reflection Coefficient Marlcov Chain Monte Carlo Gaia Mission
摘要We derive initial rotation, shape, and scattering properties for asteroids from sparse and dense photometry based on the so-called Lommel-Seeliger ellipsoid (LS ellipsoid). Due to the analytical disk integrated brightness, the LS ellipsoid allows for fast rotation-period, pole-orientation, and shape analyses, as well as efficient Markov-chain Monte Carlo solutions (MCMC). We apply the methods to simulated sparse Gaia photometry, as well as to ground-based photometry composed of dense light curves. For a specific Gaia simulation, we make use of a numerical reflection coefficient developed for particulate surfaces, and utilize the LS ellipsoid in the inversion of the simulated data. We conclude that, in a majority of cases, initial LS ellipsoid retrieval of the parameters is satisfactory. Finally, we formulate a single-scattering phase function that, for a spherical asteroid, results in the H G(1), G(2) photometric phase function. (C) 2015 Elsevier Ltd. All rights reserved.
项目资助者Academy of Finland(1257966)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0032-0633
URL查看原文
WOS记录号WOS:000370460100028
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]GAIA PHOTOMETRY ; SHAPES ; MODELS ; GASPRA ; SURFACES
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9341
专题系外行星研究组
通讯作者Muinonen, K (reprint author), Univ Helsinki, Dept Phys, Gustaf Hallstromin Katu 2a,POB 64, FI-00014 Helsinki, Finland
作者单位1.Department of Physics, Gustaf Hällströmin katu 2a, P.O. Box 64, FI-00014 University of Helsinki, Helsinki, Finland
2.Finnish Geospatial Research Institute FGI, Geodeetinrinne 2, FI-02430 Masala, Finland
3.INAF, Osservatorio Astrofisico di Torino, Strada Osservatorio 20, I-10025 Pino Torinese (TO), Italy
4.Yunnan Observatories, CAS, P.O. Box 110, Kunming 650011, China
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Muinonen, Karri,Wilkman, Olli,Cellino, Alberto,et al. Asteroid lightcurve inversion with Lommel-Seeliger ellipsoids[J]. PLANETARY AND SPACE SCIENCE,2015,118:227-241.
APA Muinonen, Karri,Wilkman, Olli,Cellino, Alberto,Wang XB,Wang YB,&Muinonen, K .(2015).Asteroid lightcurve inversion with Lommel-Seeliger ellipsoids.PLANETARY AND SPACE SCIENCE,118,227-241.
MLA Muinonen, Karri,et al."Asteroid lightcurve inversion with Lommel-Seeliger ellipsoids".PLANETARY AND SPACE SCIENCE 118(2015):227-241.
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