
arXiv: 1810.00780
The simultaneous presence of variability due to both pulsations and binarity is no rare phenomenon. Unfortunately, the complexities of dealing with even one of these sources of variability individually means that the other signal is often treated as a nuisance and discarded. However, both types of variability offer means to probe fundamental stellar properties in robust ways through asteroseismic and binary modelling. We present an efficient methodology that includes both binary and asteroseismic information to estimate fundamental stellar properties based on a grid-based modelling approach. We report parameters for three gravity mode pulsating {\it Kepler} binaries , such as mass, radius, age, as well the mass of the convective core and location of the overshoot region. We discuss the presence of parameter degeneracies and the way our methodology deals with them. We provide asteroseismically calibrated isochrone-clouds to the community; these are a generalisation of isochrones when allowing for different values of the core overshooting in the two components of the binary.
16 pages, 15 figures, 6 tables. Accepted for publication in MNRAS
Astronomy, FOS: Physical sciences, asteroseismology, Astronomy & Astrophysics, stars: interiors, FREQUENCY, 530, TO-CORE ROTATION, 5109 Space sciences, 5107 Particle and high energy physics, DEPENDENCE, 0201 Astronomical and Space Sciences, ORDER G-MODES, MAIN-SEQUENCE, Solar and Stellar Astrophysics (astro-ph.SR), Science & Technology, binaries: eclipsing, STELLAR PARAMETERS, EVOLUTION, 620, INTERNAL-ROTATION, Astrophysics - Solar and Stellar Astrophysics, Physical Sciences, stars: fundamental parameters, stars: oscillations, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], binaries: spectroscopic, CONVECTIVE CORES, MASSIVE STARS, 5101 Astronomical sciences
Astronomy, FOS: Physical sciences, asteroseismology, Astronomy & Astrophysics, stars: interiors, FREQUENCY, 530, TO-CORE ROTATION, 5109 Space sciences, 5107 Particle and high energy physics, DEPENDENCE, 0201 Astronomical and Space Sciences, ORDER G-MODES, MAIN-SEQUENCE, Solar and Stellar Astrophysics (astro-ph.SR), Science & Technology, binaries: eclipsing, STELLAR PARAMETERS, EVOLUTION, 620, INTERNAL-ROTATION, Astrophysics - Solar and Stellar Astrophysics, Physical Sciences, stars: fundamental parameters, stars: oscillations, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], binaries: spectroscopic, CONVECTIVE CORES, MASSIVE STARS, 5101 Astronomical sciences
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