Speaker
Description
First Name: Momchil
Last Name: Molnar
Affiliation: Southwest Research Institute
All Authors: Momchil Molnar, Don Hassler, Joseph Plowman, Miho Janvier, Tania Varesano, Arpit Shrivastav, Matthias Rempel
Abstract: This project investigates the properties of transition region and coronal spectral lines observed close to the South solar Pole with SO/SPICE during the first high inclination perihelia in 2025. We focus on the dependence of the Doppler shifts on the underlying magnetic topology inferred from the SO/PHI instrument. Of particular interest is the relationship between the observed outflows in these regions, associated with the young solar wind, and the amount of magnetic flux present, with implications for understanding the young solar wind acceleration mechanisms. To achieve this, the project combines observational data with spectral synthesis from radiative magnetohydrodynamic (rMHD) simulations of SPICE lines generated using the MURaM code in different magnetic environments (e.g., quiet Sun and network models). This work seeks to contribute to our understanding of how the Sun’s magnetic and thermal structure governs mass and energy flows in its outer layers. The study aims to address this key objective by assessing the similarities and discrepancies between the observations and MHD models to identify areas of agreement or divergence and provide physical insights.