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Spectra and Anisotropy of Cosmic Rays during GLE64

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Abstract

Ground-based observations of cosmic rays by the spectrographic global survey method were used to study the ground-level enhancement in cosmic ray intensity on August 24, 2002. Spectra of variations of primary cosmic rays and their anisotropy were obtained. Based on measurements from the GOES spacecraft and global network of cosmic ray stations, the differential rigidity spectra of accelerated particles in the vicinity of the Sun were calculated. The maximum rigidity to which solar particles were accelerated was estimated.

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ACKNOWLEDGMENTS

The results were obtained using equipment of the Angara Shared Use Center (http://ckp-rf.ru/ckp/3056/) and the unique scientific installation Russian National Ground Network of Cosmic Ray Stations (SCR Network) (https://ckp-rf.ru/usu/433536/).

The authors would like to thank the creators and operators of the Neutron Monitor Database (https://www.nmdb.eu/) based on European Union program FP7 (contract no. 213 007) for providing data from the global network of stations.

Funding

The work was financially supported by the Ministry of Science and Higher Education of Russian Federation.

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Authors and Affiliations

  1. Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences, Irkutsk, Russia

    I. I. Kovalev, M. V. Kravtsova, S. V. Olemskoy & V. E. Sdobnov

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  1. I. I. Kovalev
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  2. M. V. Kravtsova
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  3. S. V. Olemskoy
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  4. V. E. Sdobnov
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Correspondence to I. I. Kovalev, M. V. Kravtsova, S. V. Olemskoy or V. E. Sdobnov.

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Kovalev, I.I., Kravtsova, M.V., Olemskoy, S.V. et al. Spectra and Anisotropy of Cosmic Rays during GLE64. Geomagn. Aeron. 64, 44–48 (2024). https://doi.org/10.1134/S0016793223600893

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