3 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.SR2025
Science Requirement Document (SRD) for the European Solar Telescope (EST) (3rd Edition, December 2025)
Rolf Schlichenmaier, Luis R. Bellot Rubio, Manuel Collados Vera +31
The European Strategy Forum on Research Infrastructures (ESFRI) included the European Solar Telescope (EST) as an ESFRI Project in its 2016 Roadmap and confirmed this status in 202…
astro-ph.SR2025
Average solar active region: I. Intensities, velocities, and the photospheric magnetic field
M. Å vanda, J. JurÄák, M. Schmassmann
Context: Solar active regions (ARs) are key manifestations of the Sun's magnetic activity, displaying diverse spatial and temporal characteristics. Their formation and evolution pl…