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Line Profile Variability in the Be Star α Eridani
International Astronomical Union Colloquium
AbstractWe present an analysis of line profile variability of the Be star α Eri (Achernar). Spectra of He Iλ667.8nm were collected at BrazilianLaboratório Nacional de Astrofísica (LNA)during 10 observing runs covering 27 nights in 6 years. The presence of a 1.26 days period reported previously is confirmed and we report also the detection of other periods (0.73 and 0.53 days) and a possible 12.5 days modulation. A transient high-velocity absorption component withRV= −500 km/s, higher thandoi:10.1017/s0252921100055998 fatcat:cermvwwiqba5fhrawc4svadjai