TY - JOUR
T1 - The SDSS-het survey of Kepler eclipsing binaries
T2 - Spectroscopic dynamical masses of the Kepler-16 circumbinary planet hosts
AU - Bender, Chad F.
AU - Mahadevan, Suvrath
AU - Deshpande, Rohit
AU - Wright, Jason T.
AU - Roy, Arpita
AU - Terrien, Ryan C.
AU - Sigurdsson, Steinn
AU - Ramsey, Lawrence W.
AU - Schneider, Donald P.
AU - Fleming, Scott W.
PY - 2012/6/1
Y1 - 2012/6/1
N2 - We have used high-resolution spectroscopy to observe the Kepler-16 eclipsing binary as a double-lined system and measure precise radial velocities for both stellar components. These velocities yield a dynamical mass ratio of q = 0.2994 ± 0.0031. When combined with the inclination,i=903401 +0.0016-0.0019 measured from the Kepler photometric data by Doyle et al.(D11), we derive dynamical masses for the Kepler-16 components of M A=0.654 ± 0.017 M and MB = 0.1959 ± 0.0031 M , a precision of 2.5% and 1.5%, respectively. Our results confirm at the 2% level the mass-ratio derived by D11 with their photometric-dynamical model (PDM), q=0.2937 ± 0.0006. These are among the most precise spectroscopic dynamical masses ever measured for low-mass stars and provide an important direct test of the results from the PDM technique.
AB - We have used high-resolution spectroscopy to observe the Kepler-16 eclipsing binary as a double-lined system and measure precise radial velocities for both stellar components. These velocities yield a dynamical mass ratio of q = 0.2994 ± 0.0031. When combined with the inclination,i=903401 +0.0016-0.0019 measured from the Kepler photometric data by Doyle et al.(D11), we derive dynamical masses for the Kepler-16 components of M A=0.654 ± 0.017 M and MB = 0.1959 ± 0.0031 M , a precision of 2.5% and 1.5%, respectively. Our results confirm at the 2% level the mass-ratio derived by D11 with their photometric-dynamical model (PDM), q=0.2937 ± 0.0006. These are among the most precise spectroscopic dynamical masses ever measured for low-mass stars and provide an important direct test of the results from the PDM technique.
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U2 - 10.1088/2041-8205/751/2/L31
DO - 10.1088/2041-8205/751/2/L31
M3 - Article
AN - SCOPUS:84861134491
SN - 2041-8205
VL - 751
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
M1 - L31
ER -