PHOTOELECTRIC UBV PHOTOMETRY OF NORTHERN STARS FROM THE HK OBJECTIVE-PRISM SURVEY .2.

被引:0
|
作者
DOINIDIS, SP [1 ]
BEERS, TC [1 ]
机构
[1] NATL OPT ASTRON OBSERV,KITT PEAK NATL OBSERV,TUCSON,AZ 85726
关键词
UBV PHOTOMETRY; NORTHERN STARS; HK OBJECTIVE-PRISM SURVEY;
D O I
10.1086/132915
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Photoelectric UBV photometry is presented for a sample of 165 stars drawn from the extension of the HK objective-prism/interference-filter survey of Beers, Preston, and Shectman to the northern galactic hemisphere. These results are part of continuing follow-up observations of candidate metal-deficient and horizontal-branch field stars and other interesting stars identified in the survey. A complete set of photometric observations is now available for three of the 25-square-degree survey fields. We estimate that the complete photometric sample of 299 northern HK candidates obtained to date contains on order 90 main-sequence turnoff, subgiant, and giant stars with [Fe/H] less-than-or-equal-to -1.0, 50 field blue horizontal-branch stars, and 30 stars with the photometric properties of field blue stragglers.
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页码:973 / 986
页数:14
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