Tag Archives: flux emergence

87. Magnetic Reconnection at the Earliest Stage of Solar Flux Emergence

Contributed by Hui Tian. Posted on March 1, 2018

The early phase of a flux emergence was observed by IRIS, and spectra of the accompanying UV bursts are analyzed. Many bursts appear to be associated with the magnetic flux cancellation, and almost all of them are located in regions with large squashing factors.

79. Homologous Circular-Ribbon Flares Driven by Twisted Flux Emergence

Contributed by Zhi Xu. Posted on December 18, 2017

Two homologous circular-ribbon flares associated with two filament eruptions were observed and analyzed. The emergence of magnetic flux ropes helped to inject free energy into the region and drive the magnetic reconnection above it.

60. SDO/HMI Survey of Emerging Active Regions for Helioseismology and Other Solar Physics Applications (SDO/HEAR)

Contributed by Hannah Schunker. Posted on September 28, 2016

We have generated a dataset of emerging active regions (EARs) observed by SDO/HMI that is specifically suitable for helioseismic analysis. Using this dataset we show that, on average the bipoles have a symmetric the east-west velocity relative to differential rotation.