IR Detection of Low-Mass Secondaries in Spectroscopic Binaries
Astrophysics
2009-11-07 v1
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.
Keywords
Cite
@article{arxiv.astro-ph/0110536,
title = {IR Detection of Low-Mass Secondaries in Spectroscopic Binaries},
author = {T. Mazeh and L. Prato and M. Simon and E. Goldberg and D. Norman and S. Zucker},
journal= {arXiv preprint arXiv:astro-ph/0110536},
year = {2009}
}