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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/041/0007

    • Keywords

       

      Solar flares; solar energetic particle events; coronal mass ejections.

    • Abstract

       

      The study of the solar energetic particle events (SEPs) and their association with solar flares and other activities are very crucial to understand the space weather. Keeping this in view, here we present the study of SEPs (intensity $\geq$10 pfu) during the solar cycles 21–24 (1976–2017) in >10 MeV energy channels associated with solar flares. For our analysis, we have used the data from different instruments onboard SOHO satellite. We have examined the flare size, source location, coronal mass ejections (CMEs) characteristics of associated SEPs. About 31% and 69% of the SEPs were originated from the eastern and western solar hemisphere, respectively. The average CME speed and width were 1238 km s$^{−1}$ and 253$^{\circ}$, respectively. About58% SEPs were associated with halo CMEs and 42% of SEPs associated with CMEs width varying from 10$^{\circ}$ to 250$^{\circ}$, respectively.

    • Author Affiliations

       

      RAJ KUMAR1 RAMESH CHANDRA1 BIMAL PANDE1 SEEMA PANDE1

      1. Department of Physics, DSB Campus, Kumaun University, Nainital 263 001, India.
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    • Supplementary Material

       
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