On possible explanations of pulsations in Maia stars

TL;DR

This paper investigates pulsations in Maia stars, exploring how rotation and opacity changes can explain their observed variability, based on photometric surveys and Kepler data analysis.

Contribution

It proposes models incorporating rotation and opacity modifications to explain Maia star pulsations, advancing understanding of their variability mechanisms.

Findings

Identification of pulsational variability in Maia stars

Models incorporating rotation explain observed frequencies

Opacity modifications can account for certain pulsation features

Abstract

The long-time photometric surveys in a few young open clusters allowed to identify the light variability in stars located on the HR diagram between the well defined $\delta$ Scuti variables and Slowly Pulsating B-type stars. Several objects of this type were suggested also from the analysis of the Kepler data. Assuming the pulsational origin of this variability, we try to explain the observed frequencies with pulsational models involving rotation and/or modification of the mean opacity profile.