2019MNRAS.482.1231J


Query : 2019MNRAS.482.1231J

2019MNRAS.482.1231J - Mon. Not. R. Astron. Soc., 482, 1231-1246 (2019/January-1)

Binary asteroseismic modelling: isochrone-cloud methodology and application to Kepler gravity mode pulsators.

JOHNSTON C., TKACHENKO A., AERTS C., MOLENBERGHS G., BOWMAN D.M., PEDERSEN M.G., BUYSSCHAERT B. and PAPICS P.I.

Abstract (from CDS):

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 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 generalization of isochrones when allowing for different values of the core overshooting in the two components of the binary.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): asteroseismology - binaries: eclipsing - binaries: spectroscopic - stars: fundamental parameters - stars: interiors - stars: oscillations

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17421 0
2 HD 179506 Ro* 19 10 57.7607883552 +41 46 33.421683180   7.87 7.91     B8VsHestr(B6) 40 0
3 2MASS J19120273+4742364 Pu* 19 12 02.7395758512 +47 42 36.406192932           B8.3V 63 0
4 KOI-5112 RG* 19 21 49.4321812440 +40 08 44.635544808   12.39 11.15     K2IV 45 0
5 HD 184939 SB* 19 35 07.8332799936 +40 01 28.891242084   8.79 8.86     A2 25 0
6 TYC 3560-2433-1 dS* 19 36 27.3036735096 +47 05 02.149341756   12.40 11.65     F6II 56 0
7 BD+43 3310 Pu* 19 37 29.7688619736 +43 24 57.369736800   10.32 10.28     B9IV 52 0

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