Bayesian Asteroseismology of 23 Solar-Like Kepler Targets

Abstract

We study 23 previously published Kepler targets to perform a consistent grid-based Bayesian asteroseismic analysis and compare our results to those obtained via the Asteroseismic Modelling Portal (AMP). We find differences in the derived stellar parameters of many targets and their uncertainties. While some of these differences can be attributed to systematic effects between stellar evolutionary models, we show that the different methodologies deliver incompatible uncertainties for some parameters. Using non-adiabatic models and our capability to measure surface effects, we also investigate the dependency of these surface effects on the stellar parameters. Our results suggest a dependence of the magnitude of the surface effect on the mixing length parameter which also, but only minimally, affects the determination of stellar parameters. While some stars in our sample show no surface effect at all, the most significant surface effects are found for stars that are close to the Sun's position in the HR diagram.

14 pages, 9 figures, accepted for publication in MNRAS

References in corpus (6)

• Correcting stellar oscillation frequencies for near-surface effects
• YREC: The Yale Rotating Stellar Evolution Code
• Asteroseismology of the solar analogs 16 Cyg A & B from Kepler observations
• A precise asteroseismic age and radius for the evolved Sun-like star KIC 11026764
• Interferometric radii of bright Kepler stars with the CHARA Array: θ Cygni and 16 Cygni A and B
• A Stellar Model-fitting Pipeline for Asteroseismic Data from the Kepler Mission

Cited by in corpus (32)

• Asteroseismic fundamental properties of solar-type stars observed by the NASA Kepler Mission
• Probing the interior physics of stars through asteroseismology
• A new correction of stellar oscillation frequencies for near-surface effects
• Asteroseismology of solar-type stars
• Properties of 42 Solar-type Kepler Targets from the Asteroseismic Modeling Portal
• Oscillation frequencies for 35 \Kepler solar-type planet-hosting stars using Bayesian techniques and machine learning
• Impact on asteroseismic analyses of regular gaps in Kepler data
• Asteroseismic inference on rotation, gyrochronology and planetary system dynamics of 16 Cygni
• Forward asteroseismic modeling of stars with a convective core from gravity-mode oscillations: parameter estimation and stellar model selection
• Surface-effect corrections for solar-like oscillations using 3D hydrodynamical simulations
• Interaction Between Convection and Pulsation
• Asteroseismic estimate of helium abundance of a solar analog binary system
• Why should we correct reported pulsation frequencies for stellar line-of-sight Doppler velocity shifts?
• Asteroseismic modelling of solar-type stars: internal systematics from input physics and surface correction methods
• Asteroseismic modeling of 16 Cyg A & B using the complete Kepler data set
• Nonlinear seismic scaling relations
• Constraints on the structure of 16 Cyg A and 16 Cyg B using inversion techniques
• Asteroseismic determination of fundamental parameters of sun-like stars using multi-layered neural networks
• Deep Learning Applied to the Asteroseismic Modeling of Stars with Coherent Oscillation Modes
• Modeling Convective Core Overshoot and Diffusion in Procyon Constrained by Asteroseismic Data
• Surface correction of main sequence solar-like oscillators with the $Kepler$ LEGACY sample
• Deciphering stellar chorus: apollinaire, a Python 3 module for Bayesian peakbagging in helio- and asteroseismology
• A Bayesian estimation of the helioseismic solar age
• New Insights for High-precision Asteroseismology: Acoustic Radius of KIC 6225718
• Thorough characterisation of the 16 Cygni system. Part II. Seismic inversions of the internal structure
• Impact of magnetic activity on inferred stellar properties of main sequence Sun-like stars
• Asteroseismic and orbital analysis of the triple star system HD 188753 observed by Kepler
• Asteroseismic modelling strategies in the PLATO era I. Mean density inversions and direct treatment of the seismic information
• Asteroseismic Stellar Modelling with AIMS
• Asteroseismic Inversions for Internal Sound Speed Profiles of Main-sequence Stars with Radiative Cores
• Seismic diagnostics of solar-like oscillating stars
• Asteroseismic modelling of main-sequence solar-like stars and Kepler exoplanet host stars with the FICO procedure I. Catalogue of fundamental stellar properties