From sunspot drawings provided by the Kanzelhöhe Solar Observatory, Austria, and the
Skalnaté Pleso Observatory, Slovak Republic, we extracted a data catalogue of hemispheric …

Abstract Galactic Cosmic Rays (GCRs) are charged particles, originating from galactic
and/or extra-galactic Supernova Remnants (SNR), that continuously permeate the …

In this study, we simulate 30,000 years of solar activity using turbulent-alpha (TA) and
Babcock–Leighton (BL) mechanisms in a non-kinematic, nonlinear mean field flux-transport …

We used the elaborated earlier catalog of the magneto-morphological classes (MMC) of
active regions (ARs) to study 2046 ARs of the solar cycle (SC) 23 and 1507 ARs of the …

Context. Solar magnetic activity exhibits variations with periods between 1.5 and 4 years, the
so-called quasi-biennial oscillations (QBOs), in addition to the well-known 11-year Schwabe …

Studying the hemispheric distribution of active regions (ARs) with different magnetic
morphologies may clarify the features of the dynamo process that is hidden under the …

We investigate the spatiotemporal evolution of high-degree acoustic-mode frequencies of
the Sun and surface magnetic activity over the course of multiple solar cycles, to improve our …

We investigate spatio-temporal evolution of high-degree acoustic mode frequencies of the
Sun and the surface magnetic activity, over the course of multiple solar cycles, to improve …

To determine the statistical significance of the north–south (N–S) asymmetry of active
regions (ARs) of different magneto-morphological classes (MMCs), 3553 ARs that appeared …

Studies of solar (and stellar) dynamos face a problem of utter complexity, ie, the interaction
of a turbulent plasma in the convection zone, associated with latitudinal rotation together …