文章基本信息

标题：Speckle Interferometry at SOAR in 2016 and 2017
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作者：Andrei Tokovinin ; Brian D. Mason ; William I. Hartkopf 等
期刊名称：The Astronomical journal
印刷版ISSN：0004-6256
电子版ISSN：1538-3881
出版年度：2018
卷号：155
期号：6
页码：1-11
DOI：10.3847/1538-3881/aabf8d
语种：English
出版社：American Institute of Physics
摘要：The results of speckle interferometric observations at the 4.1 m Southern Astrophysical Research Telescope in 2016 and 2017 are given, totaling 2483 measurements of 1570 resolved pairs and 609 non-resolutions. We describe briefly recent changes in the instrument and observing method and quantify the accuracy of the pixel scale and position angle calibration. Comments are given on 44 pairs resolved here for the first time. The orbital motion of the newly resolved subsystem BU83 Aa,Ab roughly agrees with its 36-year astrometric orbit proposed by J.Dommanget. Most Tycho binaries examined here turned out to be spurious.
关键词：binaries: visual