Asteroseismology of delta Scuti stars in open clusters: Praesepe

TL;DR

This paper reviews the asteroseismic potential of delta Scuti stars in open clusters, focusing on convection diagnostics, and presents detailed analysis of five stars in Praesepe, refining stellar parameters and constraining convection models.

Contribution

It provides a comprehensive analysis of delta Scuti stars in Praesepe, integrating rotation effects into asteroseismic modeling and offering new constraints on convection descriptions.

Findings

Identified restrictions on convection models for certain temperature ranges.

Estimated global stellar parameters for the analyzed stars.

Constrained cluster properties through asteroseismic analysis.

Abstract

The present paper provides a general overview of the asteroseismic potential of delta Scuti stars in clusters, in particular focusing on convection diagnostics. We give a summarise of the last results obtained by the authors for the Praesepe cluster of which five delta Scuti stars are analysed. In that work, linear analysis is confronted with observations, using refined descriptions for the effects of rotation on the determination of the global stellar parameters and on the adiabatic oscillation frequency computations. A single, complete, and coherent solution for all the selected stars is found, which lead the authors to find important restrictions to the convection description for a certain range of effective temperatures. Furthermore, the method used allowed to give an estimate of the global parameters of the selected stars and constrain the cluster.