How Small-scale Jetlike Solar Events from Miniature Flux Rope Eruptions Might Produce the Solar Wind

• Published in: The Astrophysical journal Vol. 963; no. 1; pp. 4 - 13
• Main Authors: Sterling, Alphonse C., Panesar, Navdeep K., Moore, Ronald L.
• Format: Journal Article
• Language: English
• Published: Philadelphia The American Astronomical Society 01.03.2024; IOP Publishing
• Subjects: Fluctuations; Magnetic fields; Magnetic flux; Plasma jets; Solar extreme ultraviolet emission; Solar filament eruptions; Solar magnetic field; Solar magnetic fields; Solar wind
• ISSN: 0004-637X; 1538-4357
• DOI: 10.3847/1538-4357/ad1d5f

Abstract We consider small-scale jetlike events that might make the solar wind, as has been suggested in recent studies. We show that the events referred to as “coronal jets” and as “jetlets” both fall on a power-law distribution that also includes large-scale eruptions and spicule-sized features; all of the jetlike events could contribute to the solar wind. Based on imaging and magnetic field data, it is plausible that many or most of these events might form by the same mechanism: Magnetic flux cancelation produces small-scale flux ropes, often containing a cool-material minifilament. This minifilament/flux rope erupts and reconnects with adjacent open coronal field, along which “plasma jets” flow and contribute to the solar wind. The erupting flux ropes can contain twist that is transferred to the open field, and these become Alfvénic pulses that form magnetic switchbacks, providing an intrinsic connection between switchbacks and the production of the solar wind.