Observations of a Hybrid Double-Streamer/Pseudostreamer in the Solar Corona

• Main Authors: Rachmeler, Laurel A., Platten, Sarah J., Bethge, Christian, Seaton, Daniel B., Yeates, Anthony R.
• Format: Text
• Language: unknown
• Published: arXiv 2013
• Subjects: Solar and Stellar Astrophysics astro-ph.SR; FOS Physical sciences; South Pole; South pole
• Online Access: https://dx.doi.org/10.48550/arxiv.1312.3153; https://arxiv.org/abs/1312.3153

We report on the first observation of a single hybrid magnetic structure that contains both a pseudostreamer and a double helmet streamer. This structure was originally observed by the SWAP instrument aboard the PROBA2 satellite between 5 and 10~May~2013. It consists of a pair of filament channels near the south pole of the sun. On the western edge of the structure, the magnetic morphology above the filaments is that of a side-by-side double helmet streamer, with open field between the two channels. On the eastern edge, the magnetic morphology is that of a coronal pseudostreamer without the central open field. We investigated this structure with multiple observations and modelling techniques. We describe the topology and dynamic consequences of such a unified structure. : 19 pages, 4 figures, 2 linked animations, accepted by ApJL