Are There Local Dynamos Acting in Sunspot Regions?

• Published in: The Astrophysical journal Vol. 975; no. 1; pp. 46 - 55
• Main Authors: Jin, Chunlan, Zhou, Guiping, Ji, Haisheng, Wang, Jingxiu
• Format: Journal Article
• Language: English
• Published: Philadelphia The American Astronomical Society 01.11.2024; IOP Publishing
• Subjects: Brightening; Evolution; Extreme ultraviolet radiation; Rotating generators; Solar activity; Solar dynamo; Solar magnetic fields; Solar physics; Sunspots; Ultraviolet radiation

In solar physics, a long-unanswered question is whether or not there are local dynamos acting in sunspot regions. Here we report an observed pattern of magnetic evolution that makes the sunspots alive with ample complexity and energy. This anomalous pattern manifests as peculiar bipolar magnetic eme...