2 papers
astro-ph.SR2026
The magnetic origin of the outer boundaries of sunspots
Markus Schmassmann, Nazaret Bello González, Jan JurÄák +1
Context. Sunspot boundaries are commonly outlined by contours of the continuum intensity. However, their magnetic nature has not yet been fully characterised. Aims. We investigate…
astro-ph.IM2025
Habitability of exoplanets orbiting flaring stars
Rebecca Szabó, Valentin D. Ivanov, M. Švanda
As of late 2025 there are about 70 exoplanets that meet the formal criterion of having equilibrium temperatures allowing the presence of liquid water and about 50 of them orbit M-s…