OBSERVATIONS OF BINARY STARS WITH THE DIFFERENTIAL SPECKLE SURVEY INSTRUMENT. VI. MEASURES DURING 2014 AT THE DISCOVERY CHANNEL TELESCOPE

被引：59
|
作者：
Horch, Elliott P. [1 ,2 ]
van Belle, Gerard T. [2 ]
Davidson, James W., Jr. [3 ]
Ciastko, Lindsay A. [3 ]
Everett, Mark E. [4 ]
Bjorkman, Karen S. [5 ]
机构：
[1] So Connecticut State Univ, Dept Phys, New Haven, CT 06515 USA
[2] Lowell Observ, Flagstaff, AZ 86001 USA
[3] Albion Coll, Dept Phys, Albion, MI 49224 USA
[4] Natl Opt Astron Observ, Tucson, AZ 85719 USA
[5] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA
来源：
ASTRONOMICAL JOURNAL | 2015年 / 150卷 / 05期
基金：
美国国家科学基金会;
关键词：
binaries: visual; techniques: interferometric; techniques: photometric; CD-ROM; STELLAR MULTIPLICITY; PHYSICAL-PROPERTIES; HIPPARCOS STARS; VISUAL-SYSTEMS; WIYN TELESCOPE; HOST STARS; G DWARFS; ORBITS; INTERFEROMETRY;
D O I：
10.1088/0004-6256/150/5/151
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the results of 938 speckle measures of double stars and suspected double stars drawn mainly from the Hipparcos Catalog, as well as 208 observations where no companion was noted. One hundred fourteen pairs have been resolved for the first time. The data were obtained during four observing runs in 2014 using the Differential Speckle Survey Instrument at Lowell Observatory's Discovery Channel Telescope. The measurement precision obtained when comparing to ephemeris positions of binaries with very well-known orbits is generally less than 2 mas in separation and 0 degrees.5 in position angle. Differential photometry is found to have internal precision of approximately 0.1 mag and to be in very good agreement with Hipparcos measures in cases where the comparison is most relevant. We also estimate the detection limit in the cases where no companion was found. Visual orbital elements are derived for six systems.
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页数：14
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