Year: 2006
Type: preprint
Abstract: We report the discovery of a new detached eclipsing binary known as NSVS01031772 with component masses M_1= 0.5428 +/- 0.0027Msun, M_2= 0.4982 +/- 0.0025Msun, and radii R_1= 0.5260 +/- 0.0028Rsun, R_2= 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 T_eff1 = 3615 +/- 72K and T_eff2 = 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.
Source: arXiv (Cornell University)
Institutions: Carnegie Institution for Science, Kitt Peak National Observatory, Department of Terrestrial Magnetism, San Diego State University, University of Georgia, Southeastern Universities Research Association, Universidad de La Laguna, Instituto de Astrofísica de Canarias, U.S. National Science Foundation, Clemson University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1559620840