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Photometric analysis for the spin and shape parameters of the C-type main-belt asteroids (171) Ophelia and (360) Carlova
Wang XB(王晓彬)1,2; Muinonen, Karri3,4; Wang YB(王夷博)1,5; Behrend, Raoul6; Goncalves, Rui7; Oey, Julian8; Antonini, Pierre9; Demeautis, Christophe10; Manzini, Federico11; Damerdji, Jacques12; Montier, Jacques13; Klotz, Alain14,15; Leroy, Arnaud16; Ganand, Giller16
发表期刊Astronomy and Astrophysics
2015-09-01
卷号581页码:55-59
DOI10.1051/0004-6361/201526523
产权排序第1完成单位
收录类别SCI ; EI
摘要Aims. Two C-type main-belt asteroids (171) Ophelia and (360) Carlova are studied for their spin parameters and shapes in the present paper. Although it was suspected that Ophelia was a binary system owing to the eclipse features in the light curve obtained in 1977, no direct evidence has been obtained to confirm the binarity. To verify the previous findings, the spin parameters and shape of Ophelia are derived by analyzing the photometric data. To understand the dispersion in the previous determination of Carlova's spin parameters, new observational data and existing photometric data are reanalyzed to find a homogenous solution for its spin parameters and shape. Methods. The spin parameters and shapes of two asteroids were determined from photometric data using the convex inversion technique. The simplified virtual-observation Markov chain Monte Carlo method was applied to estimate the uncertainties of the spin parameters and to understand the divergence of derived shapes. Results. A pair of possible poles for Ophelia are derived, the spin periods corresponding to the two poles are nearly the same. The convex shape of Ophelia shows binary characteristics. For Carlova, a unique pole solution and its convex shape are ascertained together with the occultation observations. The convex shape of Carlova shows that it is a rough ellipsoid.
项目资助者National Natural Science Foundation of China(11073051,10933004) ; Academy of Finland(127461) ; Academy of Finland ; Chinese Academy of Sciences
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6361
URL查看原文
归档日期2015-11-19
WOS记录号WOS:000361803900055
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]LIGHTCURVE INVERSION ; ROTATIONAL PROPERTIES ; OPTIMIZATION METHODS ; MODELS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6807
专题系外行星研究组
中国科学院天体结构与演化重点实验室
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, PO Box 110, 650011 Kunming, PR China
2.Key laboratory for the structure and evolution of celestial objects, Chinese Academy of Sciences, 650011 Kunming, PR China
3.Department of Physics, PO Box 64, 00014 University of Helsinki, Finland
4.Finnish Geodetic Institute, PO Box 15, 02431 Masala, Finland
5.University of Chinese Academy of Sciences, 100049 Beijing, PR China
6.Genève Observatory, 1290 Sauverny, Switzerland
7.Linhaceira Observatorie, Instituto Politecnico de Tomar, 2300-313 Tomar, Portugal
8.Kingsgrove observatory, 23 Monaro Ave., Kingsgrove, NSW 2208, Australia
9.Observatoire de Bédoin, 47 rue Guillaume Puy, 84000 Avignon, France
10.Observatoire du Tim, Chemin La Chapelle, 04700 Puimichel, France
11.Stazione Astronomica di Sozzago, 28060 Sozzago, Italy
12.Institut d’Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium
13.Centre Astronomique de La Couyère, 35320 La Couyère, France
14.Institut de Recherche en Astrophysique et Planétologie (IRAP), Université de Toulouse, 9 avenue du colonel Roche, 31028 Toulouse Cedex 4, France
15.Observatoire de Haute-Provence, 04870 Saint Michel l’ Observatoire, France
16.Observatoire Midi-Pyrénées and Association T60, Pic du Midi, 65200 Bagnères-de-Bigorre, France
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Wang XB,Muinonen, Karri,Wang YB,et al. Photometric analysis for the spin and shape parameters of the C-type main-belt asteroids (171) Ophelia and (360) Carlova[J]. Astronomy and Astrophysics,2015,581:55-59.
APA Wang XB.,Muinonen, Karri.,Wang YB.,Behrend, Raoul.,Goncalves, Rui.,...&Ganand, Giller.(2015).Photometric analysis for the spin and shape parameters of the C-type main-belt asteroids (171) Ophelia and (360) Carlova.Astronomy and Astrophysics,581,55-59.
MLA Wang XB,et al."Photometric analysis for the spin and shape parameters of the C-type main-belt asteroids (171) Ophelia and (360) Carlova".Astronomy and Astrophysics 581(2015):55-59.
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