2006/10/07 by Mercedes Lopez-Morales, Mercedes López‐Morales, Jerome A. Orosz +15 · 3 citations
Chemistry · Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Molecular spectroscopy and chirality #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0610225
11 pages, 6 figures (low resolution), 5 tables. Submitted to ApJ
arxiv created 2006/10/07 · openalex publication_date 2006/10/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We report the discovery of a new detached eclipsing binary known as NSVS01031772 with component masses M1= 0.5428 +/- 0.0027Msun, M2= 0.4982 +/- 0.0025Msun, and radii R1= 0.5260 +/- 0.0028Rsun, R2= 0.5088 +/- 0.0030Rsun. The system has an orbital period of 0.3681414(3) days and an apparent magnitude V ~ 12.6. The estimated effective temperatures of the stars are Teff1 = 3615 +/- 72K and Teff2 = 3513 +/- 31K. The space velocities of the system suggest that it is a main sequence binary and with a metallicity that is approximately solar. The two stars in this binary are located in a region of the Mass-Radius relation where no accurate observational data were previously available. Similarly to other low-mass binaries recently studied, the radius of each star in NSVS01031772 exceeds the best evolutionary model predictions by about 8.5% on average.