Link between solar activity and cosmic radiation uncovered
An international team of scientists using one of the world’s largest cosmic‑ray observatories has demonstrated that solar storms can directly affect the intensity of high‑energy particles that penetrate Earth’s atmosphere. Long‑term data analysis revealed that the magnetic structures within these storms modulate the incoming particle flux.
Measurements and methodology
The ground‑based detector, situated at a high‑altitude site, recorded shifts in arrival times and energy spectra of cosmic rays during and after major solar events. By cross‑referencing these observations with satellite measurements of the storms’ magnetic fields, the researchers inferred details about the internal magnetic topology of the eruptions.
Implications for forecasting
The findings suggest that monitoring cosmic‑ray fluxes could become a complementary tool for assessing solar storm characteristics. Improved insight into magnetic configurations may enhance space‑weather forecasting, thereby mitigating risks to satellites, power grids, and aviation.
Publication and future work
The results were published in Physical Review Letters. The authors intend to expand the study with additional detectors worldwide to capture global patterns and further refine solar‑weather models.