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IR Detection of Low-Mass Secondaries in Spectroscopic Binaries

T. Mazeh·L. Prato·M. Simon·E. Goldberg·D. Norman·S. Zucker
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Abstract

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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T. Mazeh, L. Prato, M. Simon, E. Goldberg, D. Norman, S. Zucker. 2001-10-24. IR Detection of Low-Mass Secondaries in Spectroscopic Binaries. https://doi.org/10.1086/324404

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