An extended study is performed of short-term bursts of muon intensity recorded at the Baksan Underground Scintillation Telescope (BUST) in 1981-1992. The bursts may be caused by primary protons with energy EpD500 GeV. We summarize the results of data analysis obtained during 18 Ground Level Enhancements (GLE) of solar cosmic rays (SCR). It is proved that at least three of the most significant bursts are associated, with a high probability, with the GLEs of September 29, 1989, June 15, 1991, and October 12, 1981. There are definite evidences that some of 15 other bursts seem to be also associated with energetic solar phenomena—large flares, coronal mass ejections (CME), solar proton events (SPE), etc. Otherwise, it is difficult to explai...
We analyze the high-energy particle emission from the Sun in two extreme solar particle events. in w...
In certain explosive events, the Sun emits large numbers of protons with energy up to tens of GeV. P...
The PHEBUS experiment aboard GRANAT observed γ-ray line emission and γ-ray continuum above...
Aims. Several experiments have reported observations on possible correlations between the flux of hi...
Several experiments have reported observations on possible correlations between the flux of high ene...