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astro-ph.SR2026
Understanding the Travel-time Asymmetry of Acoustic Waves in Sunspots With Time-distance Helioseismology
Haiyu Li, Tobías Felipe, Elena Khomenko +3
Mapping the subsurface structure and flow field of sunspots has been a challenging task for helioseismology. In this work, we investigate the propagation of acoustic waves in a sun…
astro-ph.SR2026
Active-region Modulation of Subsurface Meridional Flows and Magnetic Flux Transport on the Sun
Anisha Sen, S. P. Rajaguru, Ruizhu Chen +2
Using time-distance helioseismology applied to 14-years of SDO/HMI observations spanning solar cycle 24 and rising phase of cycle 25, we present evidence that meridional flows in t…