Dependence of Cosmic Rays Intensity on Solar and  Solar Wind Plasma Parameters During 1997–2008

P. L. Verma; Bhola Ram. Ghormare; Pawan Wasnic; Brijesh Singh; P.K.Shrivastva

Volume : III, Issue : V, May - 2013

Dependence of Cosmic Rays Intensity on Solar and Solar Wind Plasma Parameters During 1997–2008

P. L. Verma, Bhola Ram. Ghormare, Pawan Wasnic, Brijesh Singh, P. K. Shrivastva

Abstract :

We have studied the relation between yearly average of cosmic ray intensity and sunspot numbers, solar flare index, solar wind velocity and interplanetary magnetic fields observed during the period of 1997–2008. We have inferred that the yearly average of cosmic ray intensity is well correlated with yearly average of sunspot numbers, solar flare index, solar wind velocity, and interplanetary magnetic fields. We have obtained negative correlation with correlation coefficient–0.80 between yearly average of sun spot numbers and cosmic ray intensity .–0.67 between yearly average of solar flare index number and cosmic ray intermsity.–053 between yearly average of solar wind velocity and cosmic ray intensity and –0.86 between yearly average of interplanetary magnetic fields and cosmic ray intensity