Abstract
Magnetic interactions between a planet and its environment are known to lead to phenomena such as aurorae and shocks in the solar system. The large number of close-in exoplanets that were discovered triggered a renewed interest in magnetic interactions in star-planet systems. Multiple other magnetic effects were then unveiled, such as planet inflation or heating, planet migration, planetary material escape, and even modification of the host star properties. We review here the recent efforts in modeling and understanding magnetic interactions between stars and planets in the context of compact systems. We first provide simple estimates of the effects of magnetic interactions and then detail analytical and numerical models for different representative scenari. We finally lay out a series of future developments that are needed today to better understand and constrain these fascinating interactions.
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Acknowledgements
A. Strugarek acknowledges enlightening discussions about star-planet interactions with A.S. Brun, J. Bouvier, D. Cébron, A. Cumming, S. Matt, V. Réville, and P. Zarka. This review was written while A. Strugarek was partially supported by the Canada’s Natural Sciences and Engineering Research Council, the ANR Blanc 2011 Toupies, and the Centre National d’Etudes Spatiales.
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Strugarek, A. (2017). Models of Star-Planet Magnetic Interaction. In: Deeg, H., Belmonte, J. (eds) Handbook of Exoplanets . Springer, Cham. https://doi.org/10.1007/978-3-319-30648-3_25-1
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