A grid of 200 000 models of young δ Scuti stars using mesa and GYRE

SJ Murphy, TR Bedding, A Gautam… - Monthly Notices of the …, 2023 - academic.oup.com
The rapidly increasing number of delta Scuti stars with regular patterns among their
pulsation frequencies necessitates modelling tools to better understand the observations …

Asteroseismology and Spectropolarimetry of the Exoplanet Host Star λ Serpentis

TS Metcalfe, D Buzasi, D Huber… - The Astronomical …, 2023 - iopscience.iop.org
The bright star λ Ser hosts a hot Neptune with a minimum mass of 13.6 M⊕ and a 15.5 day
orbit. It also appears to be a solar analog, with a mean rotation period of 25.8 days and …

The effect of the adiabatic assumption on asteroseismic scaling relations for luminous red giants

JC Zinn, MH Pinsonneault, L Bildsten… - Monthly Notices of the …, 2023 - academic.oup.com
Although stellar radii from asteroseismic scaling relations agree at the per cent level with
independent estimates for main sequence and most first-ascent red giant branch (RGB) …

Flow-based Generative Emulation of Grids of Stellar Evolutionary Models

M Hon, Y Li, J Ong - The Astrophysical Journal, 2024 - iopscience.iop.org
We present a flow-based generative approach to emulate grids of stellar evolutionary
models. By interpreting the input parameters and output properties of these models as …

Stellar Models are Reliable at Low Metallicity: An Asteroseismic Age for the Ancient Very Metal-poor Star KIC 8144907

D Huber, D Slumstrup, M Hon, Y Li… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract Very-metal-poor stars ([Fe/H]<− 2) are important laboratories for testing stellar
models and reconstructing the formation history of our galaxy. Asteroseismology is a …

Realistic Uncertainties for Fundamental Properties of Asteroseismic Red Giants and the Interplay between Mixing Length, Metallicity, and

Y Li, TR Bedding, D Huber, D Stello… - The Astrophysical …, 2024 - iopscience.iop.org
Asteroseismic modeling is a powerful way to derive stellar properties. However, the derived
quantities are limited by built-in assumptions used in stellar models. This work presents a …

Asteroseismic Modeling of 1153 Kepler Red Giant Branch Stars: Improved Stellar Parameters with Gravity-mode Period Spacings and Luminosity Constraints

Y Wang, T Li, S Bi, TR Bedding, Y Li - The Astrophysical Journal, 2023 - iopscience.iop.org
This paper reports the estimated stellar parameters of 1153 Kepler red giant branch stars
determined with asteroseismic modeling. We use radial-mode oscillation frequencies …

Testing the Breakdown of the Asteroseismic Scaling Relations in Luminous Red Giants

AL Ash, MH Pinsonneault, M Vrard… - The Astrophysical …, 2025 - iopscience.iop.org
Nearly all cool, evolved stars are solar-like oscillators, and fundamental stellar properties
can be inferred from these oscillations with asteroseismology. Scaling relations are …

A simple method to measure νmax for asteroseismology: application to 16 000 oscillating Kepler red giants

KR Sreenivas, TR Bedding, Y Li… - Monthly Notices of …, 2024 - academic.oup.com
The importance of νmax (the frequency of maximum oscillation power) for asteroseismology
has been demonstrated widely in the previous decade, especially for red giants. With the …

Red Giant Rotational Inversion Kernels Need Nonlinear Surface Corrections

JMJ Ong - The Astrophysical Journal, 2023 - iopscience.iop.org
Asteroseismology is our only means of measuring the rotations of stars in their interiors,
rather than at their surfaces. Some techniques for measurements of this kind—" rotational …