Jan 20 – 24, 2025 Solar physics Conference
Asia/Kolkata timezone

Identification of the Regime of the Solar Dynamo Operation

Not scheduled
3m

Speaker

Dipanwita Misra (Indian Institute of Technology (BHU), Varanasi)

Description

The theoretical model, excluding meridional flow, magnetic buoyancy, and including the entire α effect from the base of the convection zone to the surface, indicates that multicycle correlations occur near the critical dynamo region, while one-cycle correlations are prevalent in the extremely super-critical dynamo region. These findings align with Kumar et al. (2021), who suggest that solar-cycle memory is influenced by the dynamo regime rather than solely by transport mechanisms, a view that contradicts Yeates et al. (2008). In marginally supercritical regions, minimal non-linearity leads to multi-cycle correlation, whereas in extremely supercritical regimes, heightened non linearity and randomness reduce the correlation. Observational data analysis corroborates these results, showing multi-cycle correlation in both diffusion and advection-dominated data, which diminishes with fewer data points.

Contribution Type Poster
Theme Solar Magnetism over Long-Time Scales

Primary author

Dipanwita Misra (Indian Institute of Technology (BHU), Varanasi)

Presentation materials

There are no materials yet.