文章基本信息

标题：Binary Star Orbits. V. The Nearby White Dwarf/Red Dwarf Pair 40 Eri BC
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作者：Brian D. Mason ; William I. Hartkopf ; Korie N. Miles 等
期刊名称：The Astronomical journal
印刷版ISSN：0004-6256
电子版ISSN：1538-3881
出版年度：2017
卷号：154
期号：5
页码：1-6
DOI：10.3847/1538-3881/aa803e
语种：English
出版社：American Institute of Physics
摘要：A new relative orbit solution with new dynamical masses is determined for the nearby white dwarf–red dwarf pair 40 Eri BC. The period is 230.29 ± 0.68 years. It is predicted to close slowly over the next half-century, getting as close as 132 in early 2066. We determine masses of 0.573 ± 0.018 for the white dwarf and 0.2036 ± 0.0064 for the red dwarf companion. The inconsistency of the masses determined by gravitational redshift and dynamical techniques, due to a premature orbit calculation, no longer exists.
关键词：binaries;general ; binaries: visual ; stars: individual (40 Eri BC) ; techniques: interferometric