A P Cygni Profile for the He 10830 A line of CI Cyg in Eclipse
Infrared spectroscopic observations of CI Cyg in eclipse show a P Cygni profile for He I 10830 Å, with a wind velocity of the order of 150 km/s, not seen in hydrogen Brackett and Paschen emission lines, which are single peaked.
KeywordsAccretion Disk Cool Star Balmer Line Giant Star Fourier Transform Spectrometer
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