Near-infrared adaptive optics spectroscopy of binary brown dwarfs HD 130948B and HD 130948C

被引：45

作者：

Goto, M

Kobayashi, N

Terada, H

Gaessler, W

Kanzawa, T

Takami, H

Takato, N

Hayano, Y

Kamata, Y

Iye, M

Saint-Jacques, DJ

Tokunaga, AT

Potter, D

Cushing, M

机构：

[1] Subaru Telescope, Hilo, HI 96720 USA

[2] Natl Astron Observ Japan, Tokyo 1818588, Japan

[3] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada

[4] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

来源：

ASTROPHYSICAL JOURNAL | 2002年 / 567卷 / 01期

关键词：

binaries : close; stars : individual (HD 130948); stars; low; mass; brown dwarfs;

D O I：

10.1086/339800

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present near-infrared spectroscopy of low-mass companions in a nearby triple system HD 130948 (Gliese 564, HR 5534). Adaptive optics on the Subaru Telescope allowed spectroscopy of the individual components of the 0."13 binary system. Based on a direct comparison with a series of template spectra, we determined the spectral types of HD 130948B and C to be L4 +/- 1. If we take the young age of the primary star into account (0.3-0.8 Gyr), HD 130948B and 130948C most likely are a binary brown dwarf system.

引用

页码：L59 / L62

页数：4

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