Stellar Coronal and Wind Models: Impact on Exoplanets
A. A. Vidotto (Trinity College Dublin)
TL;DR
This paper reviews stellar coronae and winds, their modeling, and how these stellar phenomena impact exoplanets, emphasizing the role of magnetic fields in coronal heating and wind acceleration.
Contribution
It provides an overview of existing models of stellar coronae and winds and discusses their effects on exoplanets, highlighting the importance of magnetic activity.
Findings
Coronal winds significantly affect exoplanet environments.
Magnetic fields are key to understanding stellar wind acceleration.
Existing models help predict stellar wind impacts on habitability.
Abstract
Surface magnetism is believed to be the main driver of coronal heating and stellar wind acceleration. Coronae are believed to be formed by plasma confined in closed magnetic coronal loops of the stars, with winds mainly originating in open magnetic field line regions. In this Chapter, we review some basic properties of stellar coronae and winds and present some existing models. In the last part of this Chapter, we discuss the effects of coronal winds on exoplanets.
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