Visual Orbits of Spectroscopic Binaries with the CHARA Array. II. The Eclipsing Binary HD 185912
Year: 2019
Type: article
Abstract: We present the visual orbit of the double-lined eclipsing binary, HD 185912, from long baseline interferometry with the CHARA Array. We also obtain echelle spectra from the Apache Point observatory to update the spectroscopic orbital solution and analyze new photometry from Burggraaff et al. to model the eclipses. By combining the spectroscopic and visual orbital solutions, we find component masses of M 1 = 1.361 ± 0.004 M ⊙ and M 2 = 1.331 ± 0.004 M ⊙, and a distance of d = 40.75 ± 0.30 pc from orbital parallax. From the light-curve solution, we find component radii of R 1 = 1.348 ± 0.016 R ⊙ and R 2 = 1.322 ± 0.016 R ⊙. By comparing these observed parameters to stellar evolution models, we find that HD 185912 is a young system near the zero age main sequence with an estimated age of 500 Myr.
Source: The Astronomical Journal
Authors: Kathryn V. Lester, Douglas R. Gies, Gail H. Schaefer, Christopher D. Farrington, Zhao Guo, Rachel A. Matson, John D. Monnier, Theo ten Brummelaar, Judit Sturmann, Norman Vargas, Samuel A. Weiss
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: National Science Foundation, National Aeronautics and Space Administration, California Institute of Technology, Ministerio de Ciencia, Tecnología e Innovación Productiva, Ministério da Ciência, Tecnologia e Inovação, Korea Astronomy and Space Science Institute, Ames Research Center, Jet Propulsion Laboratory, University of California, Los Angeles, Comisión Nacional de Investigación Científica y Tecnológica
OpenAlex ID: W2974596206