Main Objective: Detect and track the evolution of quiet Sun bright points across the entire temperature range from the chromosphere to the corona, using EUV and magnetic field observations.
Scientific Justification: Solar Orbiter SPICE team has discovered 'beacons' in the SPICE quiet Sun data - they are very bright, compact sources at transition region temperatures which were found to be located under the coronal bright points (Fludra at al. 2021, A&A, 656, A38). This observing program aims to detect more beacons/bright points across the entire temperature range from the chromosphere to the corona, using Solar Orbiter SPICE, EUI and PHI, and other space instruments, and track evolution of bright points to understand their magnetic field structure and thermal EUV emission, and explain extremely high intensities of the transition region lines. |
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