Detection of the H I n = 22 – 21 Rydberg line in emission at the solar submillimetre limb
نویسنده
چکیده
This letter reports the discovery of excess emission at the position of the H i n=22–21 Rydberg transition in submillimetre solar spectra taken at the extreme solar limb. This emission feature at 22.096±0.003 cm−1 shows significant limb brightening, reaching intensities of 11% above the adjacent spectral continuum with line shapes fitted best by Gaussian functions with widths of 0.018±0.004 cm−1. This measurement represents the highest-n Rydberg line of H i detected to date in the solar spectrum.
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Detection and limb brightening of the H I n = 20 – 19 Rydberg line in the submillimetre spectrum of the Sun
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