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Double-peaks of the solar cycle: An explanation from a dynamo model
Bidya Binay Karak, Sudip Mandal, Dipankar Banerjee
One peculiar feature of the solar cycle which is yet to be understood properly is the frequent occurrence of double peaks (also known as the Gnevyshev peaks). Not only the double p…
The Extended Solar Cycle: Muddying the Waters of Solar/Stellar Dynamo Modeling Or Providing Crucial Observational Constraints?
A. K. Srivastava, S. W. McIntosh, N. Arge +17
In 1844 Schwabe discovered that the number of sunspots increased and decreased over a period of about 11 years, that variation became known as the sunspot cycle. Almost eighty year…
Long-term variability of the solar cycle in the Babcock-Leighton dynamo framework
Bidya Binay Karak, Mark Miesch
We explore the cause of the solar cycle variabilities using a novel 3D Babcock--Leighton dynamo model. In this model, based on the toroidal flux at the base of the convection zone,…
Consequences of high effective Prandtl number on solar differential rotation and convective velocity
Bidya Binay Karak, Mark Miesch, Yuto Bekki
Observations suggest that the large-scale convective velocities obtained by solar convection simulations might be over-estimated (convective conundrum). One plausible solution to t…