Whitepaper #282 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: basic research. Additional topics: ground-based missions/projects; solar physics.
Here we describe how FASR, a proposed radio interferometer, would be able to detect and characterise the nonthermal emission of small-scale coronal transients like microflares and nanoflares. This would ultimately would allow quantification of the nonthermal energy budget and its importance in the total coronal energy budget, a question which has been around for several decades now.