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astro-ph.SR2025
Quasi-Biennial Oscillations and Rieger-type Periodicities in a Babcock-Leighton Solar Dynamo
Pawan Kumar, Belur Ravindra, Partha Chowdhury +1
The Sun's magnetic field shows the 11-year solar cycle and shorter periodicities, popularly known as the quasi-biennial oscillations (QBOs) and Rieger-type periods, or ``season of…
astro-ph.SR2025
Analyses of features of magnetic cycles at different amounts of dynamo supercriticality: Solar dynamo is about two times critical
Sanket Wavhal, Pawan Kumar, Bidya Binay Karak
The growth of a large-scale magnetic field in the Sun and stars is usually possible when the dynamo number (D) is above a critical value Dc. As the star ages, its rotation rate and…