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EXTREME AO OBSERVATIONS OF TWO TRIPLE ASTEROID SYSTEMS WITH SPHERE
Yang B(杨彬)1,2; Wahhaj, Z.1; Beauvalet, L.3; Marchis, F.4; Dumas, C.1,5; Marsset, M.1; Nielsen, E. L.4,6; Vachier, F.7
发表期刊ASTROPHYSICAL JOURNAL LETTERS
2016-04-01
卷号820期号:2
DOI10.3847/2041-8205/820/2/L35
产权排序第2完成单位
收录类别SCI
关键词infrared: planetary systems minor planets, asteroids: individual (130 Elektra, 93 Minerva)
摘要

We present the discovery of a new satellite of asteroid (130) Elektra-S/2014 (130) 1-in differential imaging and in integral field spectroscopy data over multiple epochs obtained with Spectro-Polarimetric High-contrast Exoplanet Research/Very Large Telescope. This new (second) moonlet of Elektra is about 2 km across, on an eccentric orbit, and about 500 km away from the primary. For a comparative study, we also observed another triple asteroid system, (93) Minerva. For both systems, component-resolved reflectance spectra of the satellites and primary were obtained simultaneously. No significant spectral difference was observed between the satellites and the primary for either triple system. We find that the moonlets in both systems are more likely to have been created by sub-disruptive impacts as opposed to having been captured.

资助项目NASA[NNX14AJ80G]
项目资助者NASA[NNX14AJ80G]
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星天文学 ; 恒星与银河系其他学科
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN2041-8205
URL查看原文
WOS记录号WOS:000373085300013
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]45 EUGENIA ; 87 SYLVIA ; ORBITS
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9573
专题其他
通讯作者Yang B(杨彬)
作者单位1.European Southern Observatory, Santiago, Chile
2.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, China
3.National Observatory, Rio de Janeiro, Brazil
4.Carl Sagan Center at the SETI Institute, Mountain View, CA, USA
5.TMT International Observatory, Pasadena, CA, USA
6.Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, Stanford, CA 94305, USA
7.Institut de Mécanique Céleste et de Calcul des Éphémérides, Paris, France
推荐引用方式
GB/T 7714
Yang B,Wahhaj, Z.,Beauvalet, L.,et al. EXTREME AO OBSERVATIONS OF TWO TRIPLE ASTEROID SYSTEMS WITH SPHERE[J]. ASTROPHYSICAL JOURNAL LETTERS,2016,820(2).
APA Yang B.,Wahhaj, Z..,Beauvalet, L..,Marchis, F..,Dumas, C..,...&Vachier, F..(2016).EXTREME AO OBSERVATIONS OF TWO TRIPLE ASTEROID SYSTEMS WITH SPHERE.ASTROPHYSICAL JOURNAL LETTERS,820(2).
MLA Yang B,et al."EXTREME AO OBSERVATIONS OF TWO TRIPLE ASTEROID SYSTEMS WITH SPHERE".ASTROPHYSICAL JOURNAL LETTERS 820.2(2016).
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