Interior rotation and mixing of pulsating massive stars with TESS and Kepler

Handler, Gerald

doi:10.5281/zenodo.17435896

Interior rotation and mixing of pulsating massive stars with TESS and Kepler

Handler, Gerald

Publisher: Zenodo
DOI: 10.5281/zenodo.17435896
Repository: zenodo.org
Language: en

Abstract

The evolution of massive stars is heavily influenced by internal processes such as mixing that notably affects the convective core mass that is difficult to be constrained observationally with classical methods. However, knowledge about the efficiency of different mixing processes, whose modelling requires a number of essentially uncalibrated free parameters, is crucial to arrive at realistic models from the main sequence up to the pre-supernova stages. Here, asteroseismology comes into play. Gravity and pressure mode pulsation frequencies are sensitive to convective core sizes and interior rotation and can provide measurements thereof. Particularly important in this respect are binary stars and multiple systems whose global parameters can be determined in addition to remove ambiguities in the modelling process. In this presentation, we review determinations of interior rotation profiles and physical parameters near the convective cores of OB stars based on TESS and Kepler data.

Full text

Interior rotation and mixing of pulsating massive stars with TESS and Kepler Gerald Handler Nicolaus Copernicus Astronomical Center Warsaw Setting the stage (Figure by May Gade Pedersen) Setting the stage Herrero et al. 1992 Setting the stage V380 Cyg, Guinan et al. 2000 (see also Tkachenko et al. 2014) What can asteroseismology do? Pamyatnykh, Handler & Dziembowski 2004 (see also Aerts et al., 2003; Dupret et al. 2004) What can asteroseismology do? Pamyatnykh, Handler & Dziembowski 2004 (see also Aerts et al., 2003; Dupret et al. 2004) What can asteroseismology do? Miglio et al. 2008 What can asteroseismology do? Miglio et al. 2008 What did asteroseismology do? Pedersen et al. 2021 Interior rotation (Figure by May Gade Pedersen) Interior rotation Pamyatnykh et al. 2004 Aerts et al. 2003 Interior rotation Pamyatnykh et al. 2004 (see also Suarez et al. 2009) Dupret et al. 2004 Interior rotation Pamyatnykh et al. 2004 (see also Suarez et al. 2009) Dupret et al. 2004 Differential rotation in a b Cephei star with TESS Burssens et al. 2023 Differential rotation in b Cephei stars Burssens et al. 2023 Differential rotation in b Cephei stars Vanlaer et al. 2025 Differential rotation in b Cephei stars Vanlaer et al. 2025 Near-core rotation in SPB stars Adapted from Bouabid et al. 2013 Near-core rotation in SPB stars Adapted from Bouabid et al. 2013