Adaptive optics imaging survey of the Tucana-Horologium association
Adaptive optics imaging survey of the Tucana-Horologium association
复制标题
Tucana-Horologium 协会的自适应光学成像调查
DOI：
10.1051/0004-6361:20030352
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发表时间：
2003
影响因子：
6.5
通讯作者：
D. Mouillet
中科院分区：
文献类型：
--
作者：
G. Chauvin;M. Thomson;C. Dumas;J. Beuzit;P. Lowrance;T. Fusco;A. Lagrange;B. Zuckerman;D. Mouillet
我们介绍了利用Adonis/SHARPII系统在ESO 3.6米望远镜上对Tucana和Horologium的常见组合进行的自适应光学成像调查的结果。根据我们对20多个可能的协会成员的观察，HIP1910和HIP108422似乎有低质量的恒星伴星，而HIP6856和GSC8047-0232可能有亚恒星候选伴星。2000年11月和2001年10月进行的天体测量表明，HIP 1910 B很可能与它的主要恒星绑定在一起，但对于HIP 6856的候选伴侣来说，这一点并不确定。需要额外的观察来确认HIP6856以及HIP 108422和GSC8047-0232的伴随关系。
We present the results of an adaptive optics (AO) imaging survey of the common associations of Tucana and Horologium, carried out at the ESO 3.6 m telescope with the ADONIS/SHARPII system. Based on our observations of two dozen probable association members, HIP 1910 and HIP 108422 appear to have low-mass stellar companions, while HIP 6856 and GSC 8047-0232 have possible sub-stellar candidate companions. Astrometric measurements, performed in November 2000 and October 2001, indicate that HIP 1910 B likely is bound to its primary, but are inconclusive in the case of the candidate companion to HIP 6856. Additional observations are needed to confirm the HIP 6856 companionship as well as for HIP 108422 and GSC 8047-0232.