[NASA] Paper on Coronal Jets and CMEs Published

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Alphonse Sterling (ST13) is co-author on a paper describing CMEs that appear to be initiated by a series of recurrent coronal jets.  The paper is entitled:  “Source Region and Launch Characteristics of Magnetic-arch-blowout Solar Coronal Mass Ejections Driven by Homologous Compact-flare Blowout Jets.”  It is led by Binal Patel, a graduate student of Sterling’s colleague in India, Bhuwan Joshi; Ronald Moore of UAH is also a co-author.  The paper will appear in ApJ shortly, and a preprint is available at

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Pre-eruptive coronal magnetic field configurations of the source region obtained from the NLFFF extrapolations using HMI vector magnetograms before events I–IV. We show the flux rope in blue ****** in each panel. The source region consists of closed bipolar field lines (green), which constrain the underlying flux rope. The flux rope is formed between emerging negative flux (N_E ) and positive polarity flux (P₂) in the leading part of the AR. The red circles mark the southeastern footpoint location of the flux rope in each panel, which is rooted in the rapidly changing N_E region. (a2)–(d2) The flux ropes are shown from side views before events I–IV. (a3)–(d3) An AIA 304 Å image before the respective event is plotted in the background of the flux ropes.

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