IR Detection of Low-Mass Secondaries in Spectroscopic Binaries

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.

References in corpus (9)

• Dynamical Masses of T Tauri Stars and Calibration of PMS Evolution
• Predicting the Properties of Binary Stellar Systems: The Evolution of Accreting Protobinary Systems
• Near-Infrared Classification Spectroscopy: H-band Spectra of Fundamental MK Standards
• The distribution of exoplanet masses
• Analysis of the Hipparcos Observations of the Extrasolar Planets and the Brown-Dwarf Candidates
• The Hipparcos observations and the mass of sub-stellar objects
• A Dynamical Mass Constraint for Pre-Main-Sequence Evolutionary Tracks: The Binary NTT 045251+3016
• Screening the Hipparcos-based astrometric orbits of sub-stellar objects
• Studies of multiple stellar systems - IV. The triple-lined spectroscopic system Gliese 644

Cited by in corpus (31)

• A Survey of Stellar Families: Multiplicity of Solar-Type Stars
• Bayesian analysis to identify new star candidates in nearby young stellar kinematic groups
• Pulkovo Compilation of Radial Velocities for 35495 Hipparcos Stars in a Common System
• BANYAN. III. Radial velocity, Rotation and X-ray emission of low-mass star candidates in nearby young kinematic groups
• A Surprising Reversal of Temperatures in the Brown-Dwarf Eclipsing Binary 2MASS J05352184-0546085
• Multi-order TODCOR: application to observations taken with the CORALIE echelle spectrograph
• The Smallest Mass Ratio Young Star Spectroscopic Binaries
• The Mass Ratio Distribution in Main-Sequence Spectroscopic Binaries Measured by IR Spectroscopy
• Beta Pictoris and AB Doradus Moving Groups: Likely New Low-Mass Members
• Nearby young stars selected by proper motion. I. Four new members of the Beta Pictoris moving group from the Tycho-2 catalog
• Component Masses of the Young Spectroscopic Binary UZ Tau E
• A Survey for Young Spectroscopic Binary K7-M4 Stars in Ophiuchus
• An Upper Bound on the Flux Ratio of rho CrB's Companion at 1.6um
• The Monitor project: JW 380 -- a 0.26, 0.15 Msol pre main sequence eclipsing binary in the Orion Nebula Cluster
• The Detection of Low Mass Companions in Hyades Cluster Spectroscopic Binary Stars
• The GL 569 Multiple System
• Planets Around Low-Mass Stars (PALMS). V. Age-Dating Low-Mass Companions to Members and Interlopers of Young Moving Groups
• No evidence of a hot Jupiter around HD 188753 A
• Orbit and Stellar Properties of the Young Triple V807 Tau
• The quadruple pre-main sequence system LkCa3: Implications for stellar evolution models
• An Association in the Aquila Star-Forming Region: High Resolution Infrared Spectroscopy of T Tauri Stars
• Is beryllium ultra-depletion in solar-type stars linked to the presence of a white dwarf companion?
• The Highly Eccentric Pre-Main Sequence Spectroscopic Binary RX J0529.3+1210
• Orbital and physical parameters of eclipsing binaries from the All-Sky Automated Survey catalogue - X. Three high-contrast systems with secondaries detected with IR spectroscopy
• Luminaries in the Sky: The TESS Legacy Sample of Bright Stars. I. Asteroseismic detections in naked-eye main-sequence and sub-giant solar-like oscillators
• Dynamical Measurements of the Young Upper Scorpius Triple NTTS 155808-2219
• High-resolution infrared spectroscopy as a tool to detect false positives of transit search programs
• Orbital Parameters for the Two Young Binaries VSB 111 and VSB 126
• The young binary HD 102077: Orbit, spectral type, kinematics, and moving group membership
• Characterisation of close visual binaries from the AstraLux Large M Dwarf Survey
• RX J0513.1+0851 AND RX J0539.9+0956: Two Young, Rapidly Rotating, Spectroscopic Binary Stars