Astrometric orbits for Hipparcos stochastic binaries

被引：59
|
作者：
Goldin, A.
Makarov, V. V.
机构：
[1] Citadel Investment Grp, Chicago, IL 60603 USA
[2] CALTECH, Michelson Sci Ctr, Pasadena, CA 91125 USA
来源：
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2007年 / 173卷 / 01期
关键词：
astrometry; binaries : general;
D O I：
10.1086/520513
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Taking advantage of an improved genetic optimization algorithm for fitting unconstrained Kepler orbits to the Hipparcos intermediate astrometric data, we obtain additional orbital solutions for 81 Hipparcos stars with previous stochastic ( failed) solutions. The sample includes astrophysically interesting objects, including the old disk wide binary HIP 754, the nearby AGB star HIP 34922 (L-2 Pup), and the nearby M2 dwarf HIP 5496 (GJ 54, at 8 pc from the Sun), which has a resolved M dwarf companion.
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页码：137 / 142
页数：6
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