aDepartment of Physics, Govt. M.G.M. P.G. College, Itarsi, M. P., India e-mail: jothemkj@gmail.com
bDepartment of Physics, Govt. M. V.M., Bhopal, M. P., India e-mail: asbplin@rediffmail.com
cDepartment of Physics, Govt. P. G College Rewa, M. P., India e-mail: pankaj_in_2001@rediffmail.com
1Corresponding author
Online published on 14 October, 2011.
Interplanetary Coronal Mass Ejections (ICMEs) are the interplanetary manifestation of Coronal Mass Ejections observed by Coronagraphs near the sun. Based on the ICMEs observations for the descending phase of the solar cycle 23, we have proposed that the short-term modulation of cosmic rays is influenced by CMEs activity. In this study, 93 events of ICMEs have been used to derive their effects on cosmic ray intensity for the period of 2002 to 2007. Daily values of Kiel neutron monitor have been taken in chree analysis. Results of present analysis suggest that ICMEs can produce short-term transient decreases in cosmic rayintensity.
Interplanetary coronal mass ejection, cosmic rays
