TL;DR
This paper reviews the interactions between late-type stars with outer convection zones and close-in planets, focusing on tides and magnetic fields, highlighting key observations, theoretical interpretations, and open questions.
Contribution
It provides a comprehensive review of star-planet interactions specifically for close-in planets around late-type stars, emphasizing recent observations and theoretical challenges.
Findings
Tidal interactions influence planetary orbital evolution.
Magnetic fields play a significant role in star-planet coupling.
Open questions remain about the detailed mechanisms of these interactions.
Abstract
Stars interact with their planets through gravitation, radiation, and magnetic fields. I shall focus on the interactions between late-type stars with an outer convection zone and close-in planets, i.e., with an orbital semimajor axis smaller than approximately 0.15 AU. I shall review the roles of tides and magnetic fields considering some key observations and discussing theoretical scenarios for their interpretation with an emphasis on open questions.
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