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Stellar Wind Variability from IUE Spectra of Epsilon Orionis

Sapar, L.; Sapar, A.

21 IUE spectra of epsilon Ori (HD 37128), B0 supergiant, were studied to analyze variations in the profiles of the resonance lines of N V, C IV, Si IV and Si III. The largest variations in the profiles of resonance doublets of N V, C IV and Si IV are found in blue wings of the lines at velocities from --1500 to --2000 km/s, reaching in some spectr…