Planets, stars, and their magnetic interaction

Planets, stars, and their magnetic interaction

This paper investigates the interaction between close-in (semimajor axis a<0.15AU) massive planets (a.k.a. “hot Jupiters'') and their host (late-type) stars. Two possible mechanisms for interaction are tidal and magnetic, with the focus of this paper being the latter. The pioneering work on the topic of stellar activity enhancement (such as dark spots, faculae, etc) due to planet interaction is by Cuntz et al. (2000). You can see related contributions about stellar activity on previous astrobites posts.

A shiny new planet that ain’t so hot

Title: “SOPHIE velocimetry of Kepler transit candidates IV.  KOI-196b: a non-inflated hot-Jupiter with a high albedo Authors: A. Santerne, A. S. Bonomo, G. Hébrard, M. Deleuil, C. Moutou, J.-M. Almenara, F. Bouchy, R. F. Díaz Institutions: Laboratoire...