3.1.2.5 Prompt events:
- In-situ observed electron spectrum and hard X-ray photon spectrum correlation:
- Explore why there is no agreement with the prediction of the thick-target model (Brown, 1971) that would be expected for footpoint emission.
- Arrival time of ions at 1 AU suggest a delayed release of the ions relative to the electrons (Wang et al., 2005), is this due to:
- Different accelerators for electrons and ions or
- Propagation effects (turbulence, diffusion, magnetic connectivity)?
Required observations:
- SWA, SWA Normal Mode, several hours, perihelion, other instruments: RPW, MAG, EPD, STIX.
- SoloHI: Contribute (mode: shock+synoptic), no min. obs time, all distances, w/EUI-STIX-METIS.
- EPD: All sensors: spectra, composition, fluxes, directional information, together with IS instruments. Solar source identification by RS instruments (full disk imaging). Also coordinated multi-s/c SEP observation campaigns with SPP & other missions.
Duration:
- Several hours.
Other constraints:
- Perihelion.