SUN at 17 GHz
•Quiet Sun
–Polar Brightening (activity minimum)
•Active Region
–Gyroresonance Source (3rd, 2000G, 3-min Osc.)
–Coronal/Chromospheric Magnetic Field
•Prominence/Dark Filament
–Filament Eruption
•Flare
–Thermal Plasma ( f-f: Tb ~ EM/√T, gyroresonance)
–Non-thermal Electron