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The distinct light curve shape of the asteroid (469)
Wang XB(王晓彬); Zhang XL(张西亮); Gu SH(顾盛宏); Wang, XB (reprint author), Chinese Acad Sci, United Lab Opt Astron, Natl Astron Observ, Yunnan Observ, POB 110, Kunming, Yunnan Province, Peoples R China.
会议录名称EARTH MOON AND PLANETS
2005-12
卷号97
期号3-4
页码233-243
DOI10.1007/s11038-006-9094-6
产权排序第1完成单位
收录类别SCI ; EI ; CPCI
会议名称Asteroids, Comets and Meteors Meeting
会议日期2005-08
会议地点Buzios, BRAZIL
关键词Asteroids Precession Satellite
摘要The observation light curves of the main belt asteroid (469) Argentina, obtained on March 9-11 2002 and August 10-11 2004, are presented in this paper. The complex light curve of the (469) suggests that it may be in NPA rotation. Using the Fourier analysis method, some prominent spectrum values are derived individually for two subset data. Among these period values, periods of 13.00 and 8.74 h are regarded as basic components. Other derived period values can be combined linearly with these two basic period values. If the (469) is in a free-force precession mode, the motion mode will be LAM (largest-axis mode) according the ratio of precession and rotation periods. And the minimum of I (1)/I (3) (ratio of the largest and smallest principal momentum of inertial) is 3.05. Assuming an external torque releasing by a satellite forces the (469) to precess, the mass of satellite roughly is the same order as the primary's on condition that the precession and rotation periods are two basic values. At present, we cannot draw an unambiguous conclusion on (469)'s motion for sparse data, So the further observations are necessary for understanding the (469)'s tumbling motion farther.
语种英语
学科领域Astronomy & Astrophysics ; Geology
出版者SPRINGER
出版地VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN号0167-9295
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WOS记录号WOS:000241128100006
WOS研究方向Astronomy & Astrophysics ; Geology
WOS类目Astronomy & Astrophysics ; Geosciences, Multidisciplinary
关键词[WOS]TUMBLING ASTEROIDS ; BINARY ASTEROIDS
WOS标题词Science & Technology ; Physical Sciences
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文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6824
专题系外行星研究组
通讯作者Wang, XB (reprint author), Chinese Acad Sci, United Lab Opt Astron, Natl Astron Observ, Yunnan Observ, POB 110, Kunming, Yunnan Province, Peoples R China.
作者单位National Astronomical Observatories/Yunnan Observatory, United laboratory for optical astronomy, Chinese Academy of Sciences, P.O.Box 110, Kunming, Yunnan Province, China
推荐引用方式
GB/T 7714
Wang XB,Zhang XL,Gu SH,et al. The distinct light curve shape of the asteroid (469)[C]. VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS:SPRINGER,2005:233-243.
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