Spectroscopy of hots stars in the Galactic halo
Spectroscopy of hots stars in the Galactic halo
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DOI：
10.1086/116060
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
T. Beers;S. Doinidis;K. Griffin;G. Preston;S. Shectman
中科院分区：
文献类型：
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作者：
T. Beers;S. Doinidis;K. Griffin;G. Preston;S. Shectman
光谱学报告了从 Beers 等人的香港物镜棱镜/干涉滤光片调查中选出的 769 颗热星。 （1985，AJ，90）。该样本涵盖了广泛的物镜棱镜分类，从具有极蓝色连续光谱的恒星到具有宽巴尔默He典型的AB型或A型恒星的恒星。其中许多恒星最初被归类为候选缺金属恒星。所有这些恒星都表现出中等分辨率光谱，其温度比贫金属晕恒星的主序关闭温度更高，或者是晚型和早型恒星的复合体
Spectroscopy is reported for 769 hot stars selected from the HK objective-prism/interference-filter survey of Beers et al. (1985, AJ, 90). This sample spans a wide range of objective-prism classifications, from stars with extremely blue continuous spectra to stars with broad Balmer He typical of AB- or A-type stars. Many of the stars included were originally classified as candidate metal-deficient stars. All of these stars exhibit medium-resolution spectra consistent with temperatures hotter than the main-sequence turnoff of metal-poor halo stars, or are composites of late-type and early type stars