PoS - Proceedings of Science
Volume 395 - 37th International Cosmic Ray Conference (ICRC2021) - SH - Solar & Heliospheric
Statistical analysis of Sunspot Area and their Heliospheric Effect for the Period 1986-2016
Presented by P.R. Singh*  on behalf of S.L. Agrawal, C.M. Tiwari and A.K. Singh
Full text: pdf
Pre-published on: July 23, 2021
Published on: March 18, 2022
Abstract
Sunspot area varies over the Sun’s disk and is to be heliospheric behaviour during the descending phase of solar cycle 22 to 24. Galactic Cosmic rays encounter an outward-moving solar wind with cyclic magnetic field fluctuation and turbulence. This causes convection and diffusion in the heliosphere. We have observed that the galactic cosmic rays recoveries are much faster than the solar parameter (sunspot area) with negative time lag during the descending phase of solar cycles 22 to 24. Statistical analysis of absolute asymmetry (A) of sunspot area is carried out for quasi-biennial (QBO) period is ~1.94 years with high amplitude during 2001. The significant Rieger-type periods (~124 to ~175 days) of absolute asymmetry (A) of the sunspot area have been investigated using Morlet Wavelet Techniques (MWT) for combined solar cycles 22 - 24.
DOI: https://doi.org/10.22323/1.395.1326
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