Fundamental stellar properties from asteroseismology

TL;DR

This paper demonstrates how asteroseismology can accurately determine fundamental stellar properties like mass, radius, and age, enabling detailed mapping and understanding of the Galaxy's structure and evolution.

Contribution

It presents new results on stellar parameter determinations from CoRoT and Kepler data, highlighting the method's ability to map galactic regions and constrain chemical evolution models.

Findings

Mapped and dated different galactic disk regions

Determined stellar masses, radii, and distances with high accuracy

Provided constraints on galactic chemical evolution models

Abstract

Accurate characterization of stellar populations is of prime importance to correctly understand the formation and evolution process of our Galaxy. The field of asteroseismology has been particularly successful in such an endeavor providing fundamental parameters for large samples of stars in different evolutionary phases. We present our results on determinations of masses, radii, and distances of stars in the CoRoT and Kepler fields, showing that we can map and date different regions of the galactic disk and distinguish gradients in the distribution of stellar properties at different heights. We further review how asteroseismic determinations can produce a unique set of constraints, including ages, outside the solar neighborhood for galactic chemical evolution models.