Asteroseismology of Exoplanet Host Stars

TL;DR

Asteroseismology, enabled by space-based photometry, significantly enhances the characterization of exoplanet host stars by providing precise measurements of stellar properties and system architectures, thereby advancing exoplanet science.

Contribution

This paper reviews the integration of asteroseismology with exoplanet research, highlighting recent advances and future prospects with space missions like K2 and TESS.

Findings

Improved determination of stellar radii and ages.

Measurement of spin-orbit inclinations in multiplanet systems.

Assessment of orbital eccentricities of small exoplanets.

Abstract

Asteroseismology is among the most powerful observational tools to determine fundamental properties of stars. Space-based photometry has recently enabled the systematic detection of oscillations in exoplanet host stars, allowing a combination of asteroseismology with transit and radial-velocity measurements to characterize planetary systems. In this contribution I will review the key synergies between asteroseismology and exoplanet science such as the precise determination of radii and ages of exoplanet host stars, as well as applications of asteroseismology to measure spin-orbit inclinations in multiplanet systems and orbital eccentricities of small planets. Finally I will give a brief outlook on asteroseismic studies of exoplanet hosts with current and future space-based missions such as K2 and TESS.