IR Detection of Low-Mass Secondaries in Spectroscopic Binaries

Details IR Detection of Low-Mass Secondaries in Spectroscopic Binaries IR Detection of Low-Mass Secondaries in Spectroscopic Binaries

2001-10-24

arxiv.org/abs/astro-ph/0110536v1

Astronomy and Astrophysics

Astrophysics

Scientific paper

10.1086/324404

This paper outlines an infrared spectroscopic technique to measure the radial velocities of faint secondaries in known single-lined binaries. The paper presents our H-band observations with the CSHELL and Phoenix spectrographs and describes detections of three low-mass secondaries in main-sequence binaries: G147-36, G164-67, and HD144284 with mass ratios of 0.562+-0.011, 0.423+-0.042, and 0.380+-0.013, respectively. The latter is one of the smallest mass ratios derived to date.

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