AbstractOn January 20, 2005, 7:02–7:05 UT the Aragats Multidirectional Muon Monitor (AMMM) located at 3200m a.s.l. registered enhancement of the high energy secondary muon flux (threshold ∼5GeV). The enhancement, lasting for 3min, has statistical significance of ∼4σ and is related to the X7.1 flare seen by the GOES, and very fast (>2500km/s) CME seen by SOHO, and the Ground Level Enhancements (GLE) #69 detected by the world-wide network of neutron monitors and muon detectors. The energetic and temporal characteristics of the muon signal from the AMMM are compared with the characteristics of other monitors located at the Aragats Space-Environmental Center (ASEC) and with other neutron and muon detectors. Since secondary muons with energies >5GeV are corresponding to solar proton primaries with energies 20–30GeV we conclude that in the episode of the particle acceleration at 7:02–7:05 UT 20 January 2005 solar protons were accelerated up to energies in excess of 20GeV.


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    Title :

    On the production of highest energy solar protons at 20 January 2005


    Contributors:

    Published in:

    Advances in Space Research ; 39 , 9 ; 1454-1457


    Publication date :

    2007-03-14


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English