A note on the evolution of magnetic helicity in active regions

✍ Scribed by Wang Jingxiu

• Publisher: Springer
• Year: 1996
• Tongue: English
• Weight: 301 KB
• Volume: 163
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00148004

✦ Synopsis

The evolution of magnetic helicity in a rapidly growing active region is governed mainly by the advection of magnetic fields into the photosphere. Dissipation at the photosphere makes only a minor contribution to helicity evolution. Current helicity dissipation in the three-dimensional domain around the active region can be ignored.