TY - JOUR
T1 - Infrared detection of low-mass secondaries in spectroscopic binaries
AU - Mazeh, Tsevi
AU - Prato, L.
AU - Simon, M.
AU - Goldberg, Elad
AU - Norman, Dara
AU - Zucker, Shay
PY - 2002/1/10
Y1 - 2002/1/10
N2 - 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 Cryogenic Echelle (CSHELL) and the Phoenix spectrographs and describes detections of three low-mass secondaries in main-sequence binaries, G147-36, G164-67, and HD 144284, 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 for detached main-sequence stars.
AB - 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 Cryogenic Echelle (CSHELL) and the Phoenix spectrographs and describes detections of three low-mass secondaries in main-sequence binaries, G147-36, G164-67, and HD 144284, 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 for detached main-sequence stars.
KW - Binaries
KW - Spectroscopic
KW - Spectroscopic - infrared
KW - Stars - techniques
UR - http://www.scopus.com/inward/record.url?scp=0037756946&partnerID=8YFLogxK
U2 - 10.1086/324404
DO - 10.1086/324404
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AN - SCOPUS:0037756946
SN - 0004-637X
VL - 564
SP - 1007
EP - 1014
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2 I
ER -