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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
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.
项目资助者NASA(NNX14AJ80G)
语种英语
文章类型Article
ISSN2041-8205
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
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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
作者单位1.European So Observ, Casilla 19001, Santiago 19, Chile
2.Chinese Acad Sci, Yunnan Astron Observ, Kunming, Peoples R China
3.Natl Observ, Rio De Janeiro, Brazil
4.SETI Inst, Carl Sagan Ctr, Mountain View, CA USA
5.TMT Int Observ, Pasadena, CA USA
6.Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA
7.Inst Mecan Celeste & Calcul Ephemerides, Paris, France
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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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