3 papers
astro-ph.SR2026
The recent anomalously weak polar field does not imply a weak field at solar cycle 25 minimum
Zi-Fan Wang, Jie Jiang, Yukun Luo +3
The ongoing solar cycle 25 has progressed past its peak of sunspot numbers, being stronger than the previous cycle 24. However, the present polar field is rather weak compared to p…
astro-ph.SR2025
Simulation of Solar Surface Flux Transport Constrained by Magnetic Power Spectra. I. Flux Transport Parameter
Yukun Luo, Jie Jiang, Ruihui Wang
The multi-scale structure of the solar surface magnetic field is essential for understanding both the Sun's internal dynamo processes and its external magnetic activity. The surfac…
astro-ph.SR2025
Mutual Validation of Datasets for Analyzing Tilt Angles in Solar Active Regions
Lang Qin, Jie Jiang, Ruihui Wang
The tilt angle of solar active regions (AR) is crucial for the Babcock-Leighton type dynamo models in the buildup of polar field. However, divergent results regarding properties of…