Astrometric detection of a very low-mass companion orbiting a late-type radio star
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作者:
Guirado, JC
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机构:
CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Guirado, JC
[1
]
Reynolds, JE
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Reynolds, JE
[1
]
Preston, RA
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Preston, RA
[1
]
Jauncey, DL
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Jauncey, DL
[1
]
Lestrade, JF
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Lestrade, JF
[1
]
Jones, DL
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Jones, DL
[1
]
Tzioumis, AK
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Tzioumis, AK
[1
]
Ferris, RH
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Ferris, RH
[1
]
King, EA
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
King, EA
[1
]
Lovell, JEJ
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Lovell, JEJ
[1
]
McCulloch, PM
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
McCulloch, PM
[1
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Johnston, KJ
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Johnston, KJ
[1
]
Kingham, KA
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Kingham, KA
[1
]
Martin, JO
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Martin, JO
[1
]
White, GL
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
White, GL
[1
]
Jones, PA
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机构:
CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Jones, PA
[1
]
Arenou, F
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Arenou, F
[1
]
Froeschle, M
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Froeschle, M
[1
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Kovalevsky, J
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CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Kovalevsky, J
[1
]
Martin, C
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机构:
CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Martin, C
[1
]
Lindegren, L
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机构:
CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Lindegren, L
[1
]
Soderhjelm, S
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机构:
CALTECH, Jet Prop Lab, Pasadena, CA 91109 USACALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
Soderhjelm, S
[1
]
机构:
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
来源:
PLANETS BEYOND THE SOLAR SYSTEM AND THE NEXT GENERATION OF SPACE MISSIONS
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1997年
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119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. If accurate photometry of the companion can be obtained, our mass determination will allow the AB Dor companion to serve as an accurate calibration point for the different theoretical evolutionary models of very low-mass objects. 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.