000007706 001__ 7706
000007706 005__ 20260105160342.0
000007706 037__ $$aPOSTER-2026-0014
000007706 100__ $$aPanesar, Navdeep
000007706 245__ $$aThe Magnetic Origin of Solar Coronal Jets and Campfires: SDO, IRIS, and Solar Orbiter Observations
000007706 260__ $$c2025
000007706 269__ $$c2025-06-08
000007706 520__ $$aWe present the magnetic origin of different types of campfires and coronal jets, using line-of-sight magnetograms from the Solar Dynamics Observatory (SDO)/Helioseismic and Magnetic Imager, together with extreme ultraviolet images from the Solar Orbiter/ Extreme Ultraviolet Imager and from the SDO/Atmospheric Imaging Assembly. We find that (i) both campfires and coronal jets reside above neutral lines and they often appear at sites of magnetic flux cancelation between a majority-polarity magnetic flux patch and a merging minority-polarity flux patch, with a flux cancelation rate of ∼1018 Mx hr−1 (ii) The majority of campfire brightenings are preceded by eruption of a cool-plasma structure, analogous to erupting minifilaments that precede coronal jets. Our observations suggest that (a) the presence of magnetic flux ropes may be ubiquitous in the solar atmosphere and not limited to coronal jets and larger-scale eruptions that make CMEs, and (b) magnetic flux cancelation, most likely accompanied with magnetic reconnection in the lower solar atmosphere, is the fundamental process for the formation and triggering of most solar campfires and coronal jets. Finally, we compare fine-scale jets (i.e., campfires and similar jet-like features that are smaller than typical coronal jets) with results found from a Bifrost MHD simulation.
000007706 594__ $$aSTCE
000007706 6531_ $$aSolar Orbiter
000007706 6531_ $$aEUI
000007706 6531_ $$ajets
000007706 6531_ $$acampfires
000007706 700__ $$aSterling, Alphonse
000007706 700__ $$aMoore, Ronald
000007706 700__ $$aTiwari, Sanjiv
000007706 700__ $$aHansteen, Viggo H.
000007706 700__ $$aBerghmans, David
000007706 700__ $$aCheung, Mark
000007706 700__ $$aMuller, Daniel
000007706 700__ $$aAuchere, Frederic
000007706 700__ $$aZhukov, Andrei
000007706 773__ $$t246th Meeting of the American Astronomical Society, Anchorage/Alaska
000007706 8560_ $$fdavid.berghmans@ksb-orb.be
000007706 85642 $$ahttps://ui.adsabs.harvard.edu/abs/2025AAS...24630805P/abstract
000007706 85642 $$ahttps://aas.org/meetings/aas246/program
000007706 980__ $$aCPOSTER