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Impact of Solar Outputs on the Helioshphere and Cosmic Ray Modulation


Dr. B. K. Tiwari , Department of Physics , A.P.S.University Rewa M.P.


Interplanetary magnetic field (IMF), Cosmic ray intensity (CRI), Sunspot number (SSN), solar activity


The structure of the heliosphere controls by solar outputs and their variability produces changes in cosmic ray intensity on long-term and short-term basis. Based on the observation from Omniweb data centre for solar- interplanetary data and monthly mean count rate of cosmic ray intensity (CRI) variation data from neutron monitors were used during 1996-2014. It is observed that during declining phase of solar cycle 23and ascending phase of 24 solar cycle , the sun is remarkably quiet and the strength of the interplanetary magnetic field has been falling off to new low levels , reduces the GCR entering inner- heliosphere and it is high anti-correlation has been found between sunspot number & GCR flux. It is also found that count rate of cosmic ray intensity and solar- interplanetary parameters were inverse correlated and these solar indices were positive correlated.

Other Details

Paper ID: IJSRDV2I8068
Published in: Volume : 2, Issue : 8
Publication Date: 01/11/2014
Page(s): 44-46

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