Surface magnetism in the pulsating RV Tauri star R Scuti
Solar and Stellar Astrophysics
2023-05-16 v1
Abstract
We present the surface magnetic field conditions of the brightest pulsating RV Tauri star, R Sct. Our investigation is based on the longest spectropolarimetric survey ever performed on this variable star. The analysis of high resolution spectra and circular polarization data give sharp information on the dynamics of the atmosphere and the surface magnetism, respectively. Our analysis shows that surface magnetic field can be detected at different phases along a pulsating cycle, and that it may be related to the presence of a radiative shock wave periodically emerging out of the photosphere and propagating throughout the stellar atmosphere.
Keywords
Cite
@article{arxiv.2305.07849,
title = {Surface magnetism in the pulsating RV Tauri star R Scuti},
author = {Stefan Georgiev and Agnès Lèbre and Eric Josselin and Philippe Mathias and Renada Konstantinova-Antova and Laurence Sabin},
journal= {arXiv preprint arXiv:2305.07849},
year = {2023}
}
Comments
16 pages, 14 figures