PSP/IS⊙IS observation of a solar energetic particle event associated with a streamer blowout coronal mass ejection during encounter 6

Our analysis shows that this event is associated with a slow streamer blowout coronal mass ejection (SBO-CME), and the signatures of this small CME event are consistent with those typical of larger CME events. The time-intensity profile of this event shows that the Parker Solar Probe encountered the western flank of the SBO-CME. The anisotropic and dispersive nature of this event in a shockless local plasma gives indications that these particles are most likely accelerated remotely near the Sun by a weak shock or compression wave ahead of the SBO-CME.

This event may represent direct observations of the source of the low-energy SEP seed particle population.