Abstract
The article examines the 11-year solar cycle and its impact on the variability of sunspot number and cosmic ray intensity during two recent cycles, 23 and 24. It explores how changes in solar activity affect cosmic ray intensity and how this varies over time. The solar cycle 23 has a time period of 12.3 years, while solar cycle 24 lasts for 11 years. It is evident that solar cycle 23 is prolonged than solar cycle 24. The Solar cycle 23 reached its peak with a maximum smooth Sunspot number of 180.3. on November 2001 and minimum was 11.2. In this work we investigate the heliospheric effect of cosmic rays mid-cut off rigidity neutron monitoring stations Moscow on Sunspot number. We find during ascending and descending phase for Cosmic rays and Sunspot number, the solar parameters are much faster than cosmic rays with time lag.
Keywords: – Cosmic Ray Intensity (CRI), Sunspot Number (SSN), Solar Cycle, Heliosphere.
Mudasir Ayoub1*, Santosh Sogura2, G.N. Singh3, C.M. Tiwari4