Magnetic Configuration of Active Regions Associated with GLE Events

Charged particles, generated in solar flares, sometimes can attain extremely high energy, above the 500-MeV level, and produce abrupt ground-level enhancements (GLEs) on the ground-based detectors of cosmic rays. The initial flares are strong eruptions and they could originate from active regions (ARs). A list of GLE events and associated flares was initially available, and our aim was to find the hosting AR for each GLE event. Moreover, we aimed to classify the revealed ARs using the magnetomorphological classification (MMC: Abramenko, 2021 ). We have shown that in 94