Observations of Synchronous Magnetic Flux Emergence
Abstract
We report on observations of spatially-separated, nearly simultaneous small-scale magnetic flux emergence seen in SDO/HMI magnetograms. In the prototypical event, two pairs of bipoles emerge with a nearly identical north-south orientation, the beginning of the separate emergence events begins within 3 hours of each other, and the distance between the pair is approximately twice the bipolar separation distance. This suggests a common subsurface origin. We present a detailed analysis of this emergence event and the associated evolving coronal magnetic field topology, show other examples of similar events, and present a preliminary statistical analysis of the likelihood of such events occurring by chance.
- Publication:
-
AAS/Solar Physics Division Abstracts #44
- Pub Date:
- July 2013
- Bibcode:
- 2013SPD....44..106L