Abstract Details
| Name: Bhupendra Kumar Tiwari Affiliation: Deparment of Physics APS University Rewa M.P. Conference ID: ASI2015_819 Title : Impact of Solar Variability on the Helioshphere and Cosmic Ray Modulation Authors and Co-Authors : B.K.Tiwari Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : Impact of Solar Variability on the Helioshphere and Cosmic Ray Modulation B.K.Tiwari and D.P.Tiwari Department of Physics A.P.S.University Rewa (M.P) Abstract- Modulation in the cosmic ray intensity (long-term and short-term basis) produces due to the structure of the heliosphere, controls by solar outputs and their variability. Based on the observation from Omniweb data for solar- interplanetary parameters and monthly mean count rate of cosmic ray intensityonthly 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 , (the mean value of the IMF was recorded between 2007-2009 as compared with 1985-1987 and in 1995-1997 ), 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. Keywords- Cosmic ray intensity (CRI), Sunspot number (SSN), Solar activ |