3 papers
astro-ph.SR2026
Active regions and the large-scale magnetic field of solar cycle 24
Ismo Tähtinen, Timo Asikainen, Kalevi Mursula
Most of the intracyclic variability in the large-scale solar magnetic field comes from the equatorial dipole component of the solar magnetic field. The equatorial dipole component…
astro-ph.SR2025
Relation between sunspots and solar EUV irradiance changes during the Gleissberg cycle
Kalevi Mursula
Sunspots are the standard measure of solar magnetic activity, which are also used to estimate solar spectral irradiance over centennial time scales. However, because of the lack of…
astro-ph.SR2024
The Solar and Geomagnetic Storms in May 2024: A Flash Data Report
Hisashi Hayakawa, Yusuke Ebihara, Alexander Mishev +16
In May 2024, the scientific community observed intense solar eruptions that resulted in a great geomagnetic storm and auroral extension, highlighting the need to document and quant…