Oral comunication
M. S. Cunha
Abstract
Chemically peculiar stars are benchmarks for studies concerning the transport of
chemical elements and the interplay between convection and magnetic fields. Until recently,
such studies were limited by the small number of known pulsators among chemically peculiar
stars as well as by the difficulty in achieving homogeneous determinations of their seismic and
non-seismic properties. This has changed drastically over the past few years, with the advent of
TESS and GAIA. In this talk we will share the results from the first ensemble study of ~100
pulsating magnetic Ap stars and explore the differences between the pulsation properties in
these stars and stars that are similar (the Am stars), but with undetected or weak magnetic
fields. Based on adiabatic and non-adiabatic pulsation models we will further show how these
pulsation properties can be used to constrain chemical transport inside these stars and learn
about the interaction between magnetic field and convection.
8th TESS/15th Kepler Asteroseismic Science Consortium Workshop
Porto, Portugal
2024 July
