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Binary Asteroseismic Modelling: isochrone-cloud methodology and application to Kepler gravity-mode pulsators
Binary Asteroseismic Modelling: isochrone-cloud methodology and application to Kepler gravity-mode pulsators
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
- Radboud University Nijmegen Netherlands
- Université Paris Diderot France
- KU Leuven Belgium
- Hasselt University Belgium
Microsoft Academic Graph classification: Binary number Cloud computing Kepler media_common.cataloged_instance European union media_common Physics business.industry European research Mode (statistics) language.human_language Flemish Engineering management language business
arXiv: Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics
ACM Computing Classification System: ComputingMilieux_MISCELLANEOUS
Astronomy, FOS: Physical sciences, Solar and Stellar Astrophysics (astro-ph.SR), Astronomy and Astrophysics, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, asteroseismology; binaries: eclipsing; binaries: spectroscopic; stars: fundamental parameters; stars: interiors; stars: oscillations, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Astronomy, FOS: Physical sciences, Solar and Stellar Astrophysics (astro-ph.SR), Astronomy and Astrophysics, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, asteroseismology; binaries: eclipsing; binaries: spectroscopic; stars: fundamental parameters; stars: interiors; stars: oscillations, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Microsoft Academic Graph classification: Binary number Cloud computing Kepler media_common.cataloged_instance European union media_common Physics business.industry European research Mode (statistics) language.human_language Flemish Engineering management language business
arXiv: Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics
ACM Computing Classification System: ComputingMilieux_MISCELLANEOUS
108111
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citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).42 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10% citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).42 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
Citations provided by BIP!Popularity provided by BIP!- Radboud University Nijmegen Netherlands
- Université Paris Diderot France
- KU Leuven Belgium
- Hasselt University Belgium
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