DATA CALIBRATION AND ANALYSIS FOR He I 1083 nm IMAGING SPECTROSCOPY

摘要: Imaging spectroscopy in the He i 1083 nm lines is a powerful tool for probing top of chromosphere and bottom transition region, but simple techniques spectral calibration analysis often fail this line. A method flat-fielding using uniform solar exposure with place presented illustrated data obtained at National Solar Observatory (NSO) Kitt Peak Vacuum Telescope NASA/NSO Spectromagnetograph. An efficient producing images continuum intensity, line-of-sight velocity, equivalent width, central line depth, Doppler asymmetry also illustrated.