Rapid Succession of Sep Events Associated With A Series of Euv Jets: Solar Orbiter, Stereo-A and Near-Earth Spacecraft Observations

A series of near-relativistic solar electron events was observed on November 9 to 15, 2022
by STEREO-A at 0.96 au, by near-Earth spacecraft such as ACE, Wind and SOHO at
⇠0.99 au, and by Solar Orbiter at heliocentric distances ranging from 0.59 to 0.66 au. At
least 22 electron intensity enhancements at energies >10 keV were clearly distinguishable
in the particle data collected by the Energetic Particle Detector (EPD) suite of instruments
on board Solar Orbiter, with 12 of these events occurring on 11 November 2022.
Several of these electron events were accompanied by <10 MeV proton and <⇠2 MeV/n
heavy ion intensity enhancements. The origin of this rapid succession of particle events is
a series of jet-like eruptions detected in extreme ultraviolet (EUV) observations from the
vicinity of active region AR 13141 that were closely associated with type III bursts in the
decametric-hectometric range. We find a close association between the EUV jets, type
III radio bursts and the release of near relativistic electrons. The events on 9 November
and late on 14 November are particularly interesting in that they were just evident at
electron energies below ⇠30 keV, were rich in heavy ions with energies below ⇠1 MeV/n,
associated with type III radio bursts at frequencies below ⇠1.0 MHz, and originated at
EUV solar eruptions lacking a clear jet. By combining remote and in-situ data from
the three viewpoints (Solar Orbiter and STEREO-A were ⇠20 degrees and ⇠15 degrees
east of Earth, respectively), we analyze the origin of this sequence of events, determine
the interplanetary context where they were observed, and investigate the interplanetary
transport of electrons to the different spacecraft.