Determining the minimum sum of the component masses for a binary with a known parallax from observations of a short arc of its apparent motion

被引：6

作者：

Kiselev, AA ^{[1
]}

Kiyaeva, OV ^{[1
]}

机构：

[1] Russian Acad Sci, Pulkovo Astron Observ, St Petersburg 196140, Russia

来源：

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2003年 / 29卷 / 01期

关键词：

visual binaries;

D O I：

10.1134/1.1537376

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An inequality that allows the minimum sum of the component masses for a binary, M-0, to be determined was derived from simple geometric considerations. This quantity satisfies the observed orbital motion according to Newton's law with a known parallax. The M-0 value can be calculated if the apparent-motion parameters for the components, including the curvature of the observed short orbital arc, were determined from observations. We estimated M-0 for 14 Pulkovo program stars for which the apparent orbital arc covered with observations was no less than 10degrees. We compare M-0 with the masses estimated from the mass-luminosity relation. A significant mass excess was found for the star ADS 10329. (C) 2003 MAIK "Nauka/Interperiodica".

引用

页码：37 / 40

页数：4