| Presentation Title: | Joint metric, microwave, and hard X-ray imaging spectroscopy observations of the 2023 December 31 X5 Flare |
| Author(s): | Xingyao Chen, Bin Chen, Sijie Yu, Surajit Mondal, Dale Gary, Sam Krucker |
Abstract:
Joint radio and hard X-ray studies of solar flares provide abundant information about the properties of accelerated electrons, magnetic fields, and flare dynamics. The relevant diagnostic techniques include nonthermal gyrosynchrotron emission at microwave wavelengths, coherent emission at metric-decametric wavelengths, and bremsstrahlung in hard X-rays. However, studies that employ simultaneous imaging spectroscopy observations with all three techniques on a single flare event have been elusive. Here we present multi-wavelength imaging spectroscopy observations of the X5.0-class eruptive solar flare that occurred on December 31, 2023 using microwave data obtained by EOVSA in 1–18 GHz, meter-decameter-wavelength radio data across 30-80 MHz via OVRO-LWA, and X-ray data from the STIX instrument onboard the Solar Orbiter. We apply various spectral imaging diagnostics to provide a detailed investigation of the filament eruption, flare dynamics, and energy conversion processes.