Monthly Archives: May 2026

227. Diverging subsurface flows beneath active regions dominate magnetic flux transport on the Sun

Contributed by S.P. Rajaguru. Posted on May 29, 2026

Using 14 years of helioseismic and magnetic-field observations, this study shows that deeper subsurface outflows from active regions play an important role in transporting magnetic fluxes to the polar regions and regulating polar-field formation.

226. Long-Term Clustering Pattern of Solar Active Regions and Their Potential Connection with Magneto-Rossby Waves

Contributed by Junwei Zhao. Posted on May 28, 2026

Spatiotemporal images of solar magnetic fluxes, made using the near-side magnetic-field observations and helioseismic far-side images, are analyzed separately using flux integration and power-spectrum analysis. Both results are consistent and imply that the surface active regions’ clustering patterns are likely imprints of magneto-Rossby waves in the tachocline.