A predictive framework for realistic star-planet radio emission in compact systems
The main idea of the paper is to improve the chances of detecting radio emissions from star–planet interactions (SPI) by prioritizing targets. The study combines stellar magnetic field maps and 3D stellar wind simulations to model and estimate SPI-induced radio emissions, helping identify which exoplanet systems are most likely to produce detectable signals. This framework can guide telescope observations and can be applied broadly as magnetic and wind models improve.
Exploring coronal abundances of M dwarfs at moderate activity levels
The paper investigates whether the inverse FIP (iFIP) effect, where high–FIP elements are more abundant in the corona, occurs in moderately active M dwarfs. Using XMM-Newton observations of HD 223889, the study finds evidence of an iFIP pattern, similar to other moderately active stars, suggesting a plateau in the relation between stellar temperature and FIP bias. This highlights the importance of studying low-activity stars to better understand (i)FIP effects.
Numerical quantification of the wind properties of cool main sequence stars
The paper studies how magnetized stellar winds shape the evolution of cool stars and impact orbiting planets. Using 3D MHD simulations of 21 Fto M-type stars based on observed magnetic fields, it characterizes how stellar properties influence wind parameters like mass-loss, angular momentum loss, and wind speed. The models also assess wind conditions across habitable zones, providing insights for planetary atmosphere erosion and star–planet interaction studies.
Destination exoplanet: Habitability conditions influenced by stellar winds properties
This study explores how magnetized stellar winds from solar-like stars drive atmospheric erosion on exoplanets and affect habitability. Using detailed 3D simulations, it shows that the star’s surface magnetic field strongly influences wind properties, and highlights the importance of characterizing the Alfvén surface as it defines the inner boundary of the habitable zone for star–planet interactions