Speckle Interferometry of Metal-Poor Stars in the Solar Neighborhood. I

被引：7

作者：

Rastegaev, D. A. ^{[1
]}

Balega, Yu. Yu. ^{[1
]}

Malogolovets, E. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz 369167, Russia

来源：

ASTROPHYSICAL BULLETIN | 2007年 / 62卷 / 03期

关键词：

D O I：

10.1134/S1990341307030042

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the results of speckle-interferometric observations of 109 high proper-motion metal-poor stars made with the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences. We resolve eight objects-G102-20, G191-55, BD+19. 1185A, G89-14, G87-45, G87-47, G111-38, and G114-25-into individual components and we are the first to astrometrically resolve seven of these stars. New resolved systems included two triple (G111-38, G87-47) and one quadruple (G89-14) star. The ratio of single-to-binary-to-triple-to-quadruple systems among the stars of our sample is equal to 71:28:6:1.

引用

页码：235 / 243

页数：9

共 50 条

[1] Speckle interferometry of metal-poor stars in the solar neighborhood. I
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Yu. Yu. Balega
E. V. Malogolovets
[J]. Astrophysical Bulletin, 2007, 62 : 235 - 243
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