Eruptive Events and Large-Scale Structure (IS/RS)
Leads:
Emma Davies, Geosphere, Austria
Toni Galvin, University of New Hampshire, USA
Christian Möstl, Geosphere, Austria
Objectives
(1) Evolution and propagation of coronal mass ejection driven shocks (CMEs):
Onset of CMEs and properties of the induced shocks propagating in the interplanetary medium
CMEs as sources of supra-thermal particles and particle acceleration mechanisms
Magnetic topology and structure of interplanetary CME (ICME) flux ropes
Global shape and interplanetary propagation of ICMEs
Space weather forecasting of ICME magnetic fields
Pre-eruptive magnetic field structures
Trigger and driving mechanisms of flares/CMEs
Flare/CME signatures and their relationship with the small-scale and global magnetic field
Energy release, shock propagation and particle acceleration during solar flares/CMEs
(2) Formation and evolution of corotating interaction regions (CIRs):
Properties of CIRs at different radial distances, in and out of ecliptic
Observations of energetic particle fluxes formed by CIRs
Space weather prediction of CIR properties
(3) Observations of the large-scale structure of the interplanetary magnetic field in the inner heliosphere:
Comparison between observations and model predictions
Structure of the heliospheric current sheet (HCS)
The role of the HCS, CMEs an CIRs in the modulation of galactic cosmic rays (GCRs)
Connection between remote sensing and in-situ eruption signatures
All aspects are assessed using both in-situ and remote observations, preferably from multiple locations. The joint use of Solar Orbiter data with other missions, in particular those in the solar wind like Parker Solar Probe, STEREO, Bepi Colombo, as well as Wind, ACE, and DSCOVR at L1 will play a central role during the meetings.
Resources
The presentations from this working group are available under this link: https://liveuclac-my.sharepoint.com/personal/ucassya_ucl_ac_uk/_layouts/15/onedrive.aspx?id=%2Fpersonal%2Fucassya%5Fucl%5Fac%5Fuk%2FDocuments%2Fsolo%5Fwg%5Feruptive%5Fevents%5Flss&ga=1