Conveners
Poster Session 10.6
- Istvan Ballai (University of Sheffield)
Direct regular measurements of solar irradiance from space exist since 1978.
They suggest that irradiance varies on all accessible timescales.
Models attributing the variability on time scales longer than about a day to the evolution of the solar surface magnetic field are very successful in reproducing the measured changes.
To reconstruct past irradiance changes, such models require...
Small-scale filament eruptions on the sun have previously been documented in the scientific literature. However, robust techniques to identify and semantically segment them in imagery data have not been developed. In this work, we outline preliminary work in using deep learning algorithms, and convolutional neural networks particularly, to locate mini-filament eruptions. We train a ResNet50...
Coronal Mass Ejections (CMEs) are the main drivers of interplanetary shocks and space weather disturbances. One of the key parameters that determine the geo-effectiveness of the CME is its internal magnetic configuration. Strong CMEs directed towards Earth can cause severe damage to our planet. Predicting the arrival time and impact of such CMEs can enable us to mitigate the potential damage...
The slow solar wind and the heliospheric plasma sheet wind is pervaded by periodic density perturbations, which have been identified as the signatures of flux ropes born at the tip of the helmet streamers. In this talk, we propose that the main mechanism controlling this release is a tearing mode. We use MHD simulations of the solar wind and corona to reproduce realistic configurations and...
The near-relativistic electron event of 11th July 2020 was simultaneously observed by Solar Orbiter at a radial distance of 0.61 AU and by the Wind spacecraft at 1 AU. This event exhibited an unusual ratio between the peak intensities recorded by these two spacecraft, which suggests that the coronal transport was substantially suppressed. To model this event we apply our 3d propagation model...
