We study the modulation of galactic cosmic rays due to magnetic clouds observed during solar cycles 23 and 24 (1996-2018). We utilize solar wind plasma and field data together with cosmic ray intensity (CRI) data during the passage of magnetic clouds and associated structures. We apply superposed epoch analysis to analyze these data. We study the relative importance of magnetic clouds and their associated structures in modulating the cosmic rays. We observe significant differences in the amplitudes and time profiles of transient depressions in cosmic ray intensity due to magnetic regimes of different field strengths and topologies. We discuss the observed results in light of differences in the simultaneous plasma and magnetic field properties.
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30 September 2021
A Correction to this paper has been published: https://doi.org/10.1007/s10511-021-09700-4
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Published in Astrofizika, Vol. 64, No. 2, pp. 241-257 (May 2021).
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Fadaaq, M., Badruddin, B. Modulation of Galactic Cosmic Rays Due to Magnetic Clouds and Associated Structures in the Interplanetary Space: 1996-2018. Astrophysics 64, 210–218 (2021). https://doi.org/10.1007/s10511-021-09682-3
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DOI: https://doi.org/10.1007/s10511-021-09682-3