2017/01/01 by A. A. Vidotto
Physics and Astronomy · #Astro and Planetary Science #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Exoplanet #Magnetic field #Magnetism #Physics #Planet #Stars #Starspot #Stellar atmosphere #Stellar evolution #Stellar physics #Stellar rotation #Stellar, planetary, and galactic studies #astro-ph.EP #astro-ph.SR
paper · pdf · doi:10.1051/epjconf/201716005011
Based on the review talk presented at "Seismology of the Sun and the Distant Stars 2016", July 2016, Azores, Portugal. To appear in the Proceedings "Seismology of the Sun and the Distant Stars 2016" Eds. Mario J. P. F. G. Monteiro, Margarida S. Cunha, Joao Miguel T. Ferreira
openalex publication_date 2017/01/01 · arxiv created 2017/05/19 · arxiv updated 2017/11/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It has been proposed that magnetic activity could be enhanced due to interactions between close-in massive planets and their host stars. In this article, I present a brief overview of the connection between stellar magnetic activity and exoplanets. Stellar activity can be probed in chromospheric lines, coronal emission, surface spot coverage, etc. Since these are manifestations of stellar magnetism, these measurements are often used as proxies for the magnetic field of stars. Here, instead of focusing on the magnetic proxies, I overview some recent results of magnetic field measurements using spectropolarimetric observations. Firstly, I discuss the general trends found between large-scale magnetism, stellar rotation, and coronal emission and show that magnetism seems to be correlated to the internal structure of the star. Secondly, I overview some works that show evidence that exoplanets could (or not) act as to enhance the activity of their host stars.