Astrometric detection of a very low-mass companion orbiting a late-type radio star

被引：0

作者：

Guirado, JC ^{[1
]}

Reynolds, JE ^{[1
]}

Lestrade, JF ^{[1
]}

Preston, RA ^{[1
]}

Jauncey, DL ^{[1
]}

Jones, DL ^{[1
]}

Tzioumis, AK ^{[1
]}

Ferris, RH ^{[1
]}

King, EA ^{[1
]}

Lovell, JEJ ^{[1
]}

McCulloch, PM ^{[1
]}

Johnston, KJ ^{[1
]}

Kingham, KA ^{[1
]}

Martin, JO ^{[1
]}

White, GL ^{[1
]}

Jones, PA ^{[1
]}

Arenou, F ^{[1
]}

Froeschle, M ^{[1
]}

Kovalevsky, J ^{[1
]}

Martin, C ^{[1
]}

Lindegren, L ^{[1
]}

Soderhjelm, S ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

BROWN DWARFS AND EXTRASOLAR PLANETS | 1998年 / 134卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

From the combination of VLBI (Very Long Baseline Interferometry) phase-referenced observations and Hipparcos satellite data, we have found evidence of a very low mass object orbiting the late-type star AB Doradus. The mass of the companion inferred from the observed orbital motion places this object on the boundary between a brown dwarf and a very low-mass star. This represents the first detection of a low-mass stellar companion using the VLBI technique, which could become an important tool in future searches for planets and brown dwarfs orbiting other stars.

引用

页码：304 / 307

页数：4

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