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Author Verma, V. K.
Source Aryabhatta Research Institute of Observational Sciences (ARIES)
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword Sun ♦ Sunspots
Abstract We report a study of various solar phenomena occurring in both northern and southern hemispheres of the sun for solar cycles 8-22. We have calculated the N-S asymmetry indices for several solar phenomena and plotted them against the number of solar cycles. The study indicates the N-S asymmetry has a trend of a long-term characteristic time scale of about 110 yr. An explanation for this N-S asymmetry period is not available; it may be due to the asymmetric internal magnetic structure of the sun.
Part of series apj403-797
Educational Use Research
Education Level UG and PG
Learning Resource Type Article