Speaker
Description
Observations at radio and millimeter wavelengths provide a unique window into the thermal and magnetic structure of the solar chromosphere and corona, where the solar drivers of space weather are rooted. The Atacama Large Millimeter/submillimeter Array (ALMA) has marked a major advance in solar observations by providing unprecedented spatial and temporal resolution. These capabilities enable detailed studies of dynamic small-scale processes that are fundamental to the mechanisms driving solar flares, coronal mass ejections, and the acceleration of solar energetic particles. Looking ahead, the proposed Atacama Large Aperture Submillimeter Telescope (AtLAST), a 50-meter single-dish facility, would deliver rapid multi-wavelength full-disk scans with cadences of one minute or less - an essential capability for capturing fast-evolving solar phenomena. The Square Kilometer Array (SKA), currently under construction, will observe at lower frequencies, thus probing the Sun’s corona. Beyond advancing fundamental physical understanding, solar observations at millimeter wavelengths hold strong potential for space weather forecasting. They provide sensitive diagnostics of chromospheric and coronal heating and dynamics, offering real-time constraints for models used in operational prediction systems. The Solaris project - designed to enable continuous, year-round observations from sites in Antarctica and the Arctic - will serve as an important demonstrator of this capability.
This poster will present recent advances in solar radio/mm observations, highlight synergies with forward modeling and data-driven simulations, and outline opportunities with upcoming facilities such as AtLAST, Solaris, and SKA. Together, these developments demonstrate the growing role of millimeter observations both in unraveling the solar origins of space weather and in providing critical observational input for future forecasting frameworks.
