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Long-term Spectroscopic Survey of the Hyades Cluster: The Binary Population
Guillermo Torres, Robert P. Stefanik, David W. Latham
We report the results of a radial velocity monitoring program in the Hyades region, carried out at the Center for Astrophysics over a period of more than 45 yr. Nearly 12,000 spect…
The Discovery of Two Quadruple Star Systems with the Second and Third Shortest Outer Periods
Brian P. Powell, Guillermo Torres, Veselin B. Kostov +12
We present the discovery of two quadruple star systems -- TIC 285853156 and TIC 392229331 -- each consisting of two bound eclipsing binary stars. Among the most compact quadruples…
KIC 4150611: A quadruply eclipsing heptuple star system with a g-mode period-spacing pattern Eclipse modelling of the triple and spectroscopic analysis
Alex Kemp, Andrew Tkachenko, Guillermo Torres +8
KIC 4150611 is a high-order multiple composed of a triple system composed of the F1V primary (Aa), which is eclipsed on a 94.2d period by a tight 1.52d binary composed of two dim K…
Orbits and Dynamical Masses for Six Binary Systems in the Hyades Cluster
Guillermo Torres, Gail H. Schaefer, Robert P. Stefanik +8
We report long baseline interferometric observations with the CHARA Array that resolve six previously known double-lined spectroscopic binary systems in the Hyades cluster, with or…
Orbits and Dynamical Masses for the Active Hyades Multiple System HD 284163
Guillermo Torres, Gail H. Schaefer, Robert P. Stefanik +16
We report near-infrared long-baseline interferometric observations of the Hyades multiple system HD 284163, made with the CHARA array, as well as almost 43 yr of high-resolution sp…
Dynamical Masses for the Hyades Binary System vB 120
Guillermo Torres, Robert P. Stefanik, David W. Latham
We report spectroscopic observations of vB 120 (HD 30712), a 5.7 yr astrometric-spectroscopic binary system in the Hyades cluster. We combine our radial velocities with others from…