Binary star orbits from speckle interferometry. IV : The old disk population star HR 1071
Binary star orbits from speckle interferometry. IV : The old disk population star HR 1071
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来自散斑干涉测量的双星轨道。
DOI：
10.1086/116371
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
B. Mason
中科院分区：
文献类型：
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作者：
H. Mcalister;W. Hartkopf;B. Mason
HR 1071 （F7V， V=+6.36）是一颗低转速、中等低金属丰度、极低锂丰度的古老盘族恒星。直到1985年末通过斑点观测发现，这颗恒星才被认为是双星系统。快速的轨道运动现在使我们能够初步确定轨道，从中我们发现轨道周期为13.8年。结合表观轨道的元素与对系统距离的估计以及对星等差的定性确定，我们表明该系统很可能作为双线光谱双星被探测
HR 1071 (F7V, V=+6.36) is an old disk population star of low rotational velocity, moderately low metallicity, and extremely low Li abundance. The star was not recognized as being a binary system until its discovery as such from speckle observations obtained in late 1985. Rapid orbital motion has now permitted us to make a preliminary orbit determination from which we find an orbital period of 13.8 yr. Combining the elements of the apparent orbit with an estimation of the distance to the system and with a qualitative determination of the magnitude difference, we show that the system is a likely candidate for detection as a double-lined spectroscopic binary