Screening the Hipparcos-based astrometric orbits of sub-stellar objects

被引：59

作者：

Pourbaix, D

Arenou, F

机构：

[1] Free Univ Brussels, Inst Astron & Astrophys, B-1050 Brussels, Belgium

[2] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[3] Observ Paris, CNRS, DASGAL, UMR 8633, F-92195 Meudon, France

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 372卷 / 03期

基金：

美国国家科学基金会;

关键词：

methods : data analysis; astrometry; stars : planetary systems;

D O I：

10.1051/0004-6361:20010597

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The combination of Hipparcos astrometric data with the spectroscopic data of putative extrasolar planets seems to indicate that a significant fraction of these low-mass companions could be brown or M dwarfs (Han et al. 2001). We show that this is due to the adopted reduction procedure, and consequently that the Hipparcos data do not reject the planetary mass hypothesis in all but one cases. Additional companions, undetected so far, might also explain the large astrometric residuals of some of these stars.

引用

页码：935 / 944

页数：10

共 48 条

[11] The discovery of a planetary companion to 16 Cygni B [J].