Speaker
Description
The ESA Vigil mission, to be launched in 2031, will enable unique observations of solar activity and space weather monitoring from the Sun-Earth Lagrange point L5, a gravitationally stable position 60° behind Earth in its orbit. It will capture Earth-bound coronal mass ejections, which will also be observed from the L1 and Earth vantage points. NASA’s twin-spacecraft STEREO mission (launched 2006) demonstrated the power of such stereoscopic solar observations: STEREO captured simultaneous images of the Sun from different angles, allowing to triangulate the positions of coronal loops and CME fronts, and thus to reveal their three-dimensional structure, which a single line-of-sight view cannot discern. Previously, we developed algorithmic and data-driven multi-instrument solar eruptive feature recognition and tracking methods and applied them to tracking coronal bright fronts and CMEs from the low corona out to 30 solar radii, using ground- (COSMO K-Coronagraph) and space-based (SDO/AIA, SOHO/LASCO C2 and C3) telescopic observations. In the current work, we extend our approach to study events simultaneously observed from L1/Earth and near the L5 point (by STEREO-A and STEREO-B instruments), approximating the expected geometric configuration between Vigil and the Earth/L1. In addition, we showcase the application of our automated feature tracking methods to the newly available Compact Coronagraph (CCOR) data, thereby preparing our methodology for future Vigil observations.
| Do you plan to attend in-person or online? | In-person |
|---|
