Abstract Details

Name: S.P. Rajaguru
Affiliation: Indian Institute of Astrophysics
Conference ID: ASI2026_451
Title: Helioseismic inferences on the coupled dynamics of large-scale flows and magnetic fields in the near-surface shear layer.
Abstract Type: Poster
Abstract Category: Sun, Solar System, Exoplanets, and Astrobiology
Author(s) and Co-Author(s) with Affiliation: S.P. Rajaguru(Indian Institute of Astrophysics, Bangalore), Anisha Sen(Indian Institute of Astrophysics, Bangalore), Ruizhu Chen(Stanford University, Stanford CA, USA), Junwei Zhao(Stanford University, Stanford CA, USA), Shukur Kholikov(3. National Solar Observatory, USA)
Abstract: Using 14-years of HMI/SDO and GONG data, we present a comprehensive analysis of helioseismic measurements of coupling between active region flows and the global meridional and zonal flows within the near-surface shear layer (NSSL). We also analyse active region magnetic fields, their hemispheric asymmetry and their connections to flow structures revealing new information on the roles of flows near the base of the NSSL for the observed global-scale transport of magnetic flux and build-up in the polar regions over solar cycle time-scales.