activity
20052026
most citedStellar magnetism: empirical trends with age and rotation

446 citations · 6.3k across the 172 of their papers we have counts for

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astro-ph.EP2026

Detailed study of HD 219134: a benchmark K-dwarf with a compact planetary system

Jérôme Bétrisey, Camilla Pezzotti, Gaël Buldgen +4

Space missions such as CoRoT, Kepler, and TESS have transformed asteroseismology and its synergies with exoplanet science. We revisit the nearby K-dwarf HD 219134 to investigate th…

astro-ph.EP2026

Detection of escaping magnesium in the upper atmosphere of WASP-76b

Lakeisha M. Ramos Rosado, Leonardo A. Dos Santos, Joshua D. Lothringer +8

Near-ultraviolet (NUV) observations can uniquely probe low-density, high-altitude gas in ultra-hot Jupiters (UHJs) via strong resonance lines of metals. WASP-76b is a well-studied…

astro-ph.EP2026

ESCAPE: a small explorer mission to study the stellar drivers of exoplanet evolution

Allison Youngblood, Kevin France, Brian Fleming +37

The long-term stability of exoplanetary atmospheres depends critically on the extreme-ultraviolet (EUV) photon and high-energy particle fluxes from the host star, which are poorly…

astro-ph.EP2026

Radio emission from star-planet interactions

H. K. Vedantham, A. Strugarek, C. K. Louis +12

Stars interact with their exoplanets though gravity, radiation, plasma and magnetic fields. Stellar plasma and magnetic fields impose electrodynamic effects on exoplanet atmosphere…

astro-ph.EP2026

The role of inner disk edges in shaping ultra-short-period planet systems around late M dwarfs

S. N. Brandenberger, M. Sanchez, N. Van der Marel +2

Close-in rocky planets are the most common type of exoplanets around late M dwarfs, ranging from more temperate worlds to highly irradiated lava planets with molten surfaces, and m…

astro-ph.EP2026

Star-planet magnetic interactions in photoevaporating exoplanets: enhanced power due to atmospheric escape

Andrés Presa, Aline A. Vidotto, Filip Elekes

Observations of periodic stellar activity near the transit phase of a close-in exoplanet provide evidence of star-planet magnetic interactions (SPMI), similar to the magnetic coupl…