July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Spectral index of the recurrent variation of the galactic cosmic rays during the Solar Cycle No. 24.

Aug 4, 2015, 4:00 PM
Theater Foyer (World Forum)

Theater Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 8
Poster contribution SH-TH Poster 3 SH


Agnieszka Gil (Siedlce University)


We study temporal changes of a behaviour of the power-law rigidity spectrum of the first three harmonics of the 27-day variation of the galactic cosmic rays (GCR) intensity during the solar cycle (SC) no. 24 and compare with other 11-year cycles of solar activity. We show that our recent finding - a hard spectrum of the amplitudes of the 27-day variation of the GCR intensity in maximum epochs and soft one in the minimum epochs during solar cycles no. 20 - no. 23 is generally kept, with some peculiarity in SC no. 24. Particularly, while the rigidity spectrum of amplitudes of the first harmonic of 27-day variation of the GCR intensity practically behaves as for previous periods, the second and the third harmonics demonstrate a valuable softening of a rigidity spectrum of theirs amplitudes needing a future study.
Collaboration -- not specified --
Registration number following "ICRC2015-I/" 108

Primary author

Agnieszka Gil (Siedlce University)


Prof. Michael Alania ((1) Institute of Mathematics and Physics, Siedlce University, Poland, (2) Institute of Geophysics, Tbilisi State University, Tbilisi, Georgia)

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