Ca ii triplet emission lines. The wavelength is corrected for the local standard of rest (LSR = 12.12 km s-1). The zero point is equal to the wavelength (λair) given from the NIST database. The intensity ratios of the three lines are about 1:1:1, indicative of an optically thick environment. The double peaked profile is indicative that the lines originate in a circumstellar and rotating disk.
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