Photometric study of fourteen low-mass binaries
arXiv:1709.06751 · doi:10.3847/1538-3881/aa7138
Abstract
New CCD photometric observations of fourteen short-period low-mass eclipsing binaries (LMB) in the photometric filters I, R and V were used for the light curve analysis. There still exists a discrepancy between radii as observed and those derived from the theoretical modelling for LMB in general. Mass calibration of all observed LMB was done using only the photometric indices. The light curve modelling of these selected systems were performed, yielding the new derived masses and radii for both components. We compared these systems with the compilation of other known double-lined LMB systems with uncertainties of masses and radii less then 5 \%, which includes 66 components of binaries where both spectroscopy and photometry were combined together. All of our systems are circular short-period binaries, and for some of them the photospheric spots were also used. A purely photometric study of the light curves without spectroscopy seems unable to achieve high enough precision and accuracy in the masses and radii to provide for a meaningful test of the M-R relation for low-mass stars.
arXiv comment13 pages, 3 figures
References in corpus (26)
- Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
- Accurate masses and radii of normal stars: modern results and applications
- A Computational Guide to Physics of Eclipsing Binaries. Paper I. Demonstrations and Perspectives
- Absolute dimensions of the M-type eclipsing binary YY Geminorum (Castor C): a challenge to evolutionary models in the lower main-sequence
- Evolution of low-mass star and brown dwarf eclipsing binaries
- The radius discrepancy in low mass stars: single vs. binaries
- The Mass-Radius(-Rotation?) Relation for Low-Mass Stars
- Absolute properties of the low-mass eclipsing binary CM Draconis
- GU Boo: A New 0.6 Msun Detached Eclipsing Binary
- The 0.4-Mo Eclipsing Binary CU Cancri: Absolute Dimensions, Comparison with Evolutionary Models and Possible Evidence for a Circumstellar Dust Disk
- Main-Sequence Effective Temperatures from a Revised Mass-Luminosity Relation Based on Accurate Properties
- LSPM J1112+7626: detection of a 41-day M-dwarf eclipsing binary from the MEarth transit survey
- Reevaluating the Mass-Radius Relation for Low-Mass, Main Sequence Stars
- Low-Mass Eclipsing Binaries in the Initial Kepler Data Release
- Empirical Tests of Pre-Main-Sequence Stellar Evolution Models with Eclipsing Binaries
- The Eclipsing Binary V1061 Cygni: Confronting Stellar Evolution Models for Active and Inactive Solar-Type Stars
- GJ 3236: a new bright, very low-mass eclipsing binary system discovered by the MEarth observatory
- It's EZ to Evolve ZAMS Stars: A Program Derived from Eggleton's Stellar Evolution Code
- 2MASS J05162881+2607387: A New Low-Mass Double-Lined Eclipsing Binary
- Light curve solutions for bright detached eclipsing binaries in SMC: absolute dimensions and distance indicators
- Absolute dimensions of the G7+K7 eclipsing binary star IM Virginis: Discrepancies with stellar evolution models
- Kepler Studies of Low-Mass Eclipsing Binaries I. Parameters of the Long-Period Binary KIC 6131659
- Spot evolution on the red giant star XX Triangulum. A starspot-decay analysis based on time-series Doppler imaging
- A new low-mass eclipsing binary: NSVS 02502726
- T-Cyg1-12664: A low-mass chromospherically active eclipsing binary in the Kepler field
- Absolute parameters of AE For -- a highly active detached binary of late K type