Observations of a hybrid double-streamer/pseudostreamer in the solar corona

L.A. Rachmeler, S.J. Platten, C. Bethge, D.B. Seaton, A.R. Yeates

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We report on the first observation of a single hybrid magnetic structure that contains both a pseudostreamer and a double streamer. This structure was originally observed by the SWAP instrument on board the PROBA2 satellite between 2013 May 5 and 10. 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 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 modeling techniques. We describe the topology and dynamic consequences of such a unified structure.
Original languageEnglish
Article numberL3
Number of pages6
JournalAstrophysical Journal Letters
Issue number1
Early online date28 Apr 2014
Publication statusPublished - 20 May 2014


  • Sun: corona
  • Sun: filaments, prominences
  • Sun: magnetic fields


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