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Evolution of the Sun's activity and the poleward transport of remnant magnetic flux in Cycles 21--24
Alexander V. Mordvinov, Bidya Binay Karak, Dipankar Banerjee +4
Detailed study of the solar magnetic field is crucial to understand its generation, transport and reversals. The timing of the reversals may have implications on space weather and…
Is the Hemispheric Asymmetry of Monthly Sunspot Area an Irregular Process with Long-Term Memory?
Ratul Das, Aparup Ghosh, Bidya Binay Karak
The hemispheric asymmetry of the sunspot cycle is a real feature of the Sun. However, its origin is still not well understood. Here we perform nonlinear time series analysis of the…
Subcritical dynamo and hysteresis in a Babcock-Leighton type kinematic dynamo model
Vindya Vashishth, Bidya Binay Karak, Leonid Kitchatinov
In Sun and sun-like stars, it is believed that the cycles of the large-scale magnetic field are produced due to the existence of differential rotation and helicity in the plasma fl…
Supercriticality of the dynamo limits the memory of the polar field to one cycle
Pawan Kumar, Bidya Binay Karak, Vindya Vashishth
The polar magnetic field precursor is considered to be the most robust and physics-based method for the prediction of the next solar cycle strength. However, to make a reliable pre…