Rapid variations of H-alpha emission strength of eight Be stars

Astronomy and Astrophysics – Astrophysics

Scientific paper

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B Stars, Emission Spectra, H Alpha Line, Stellar Spectra, Variable Stars, Astronomical Catalogs, Photoelectrons, Stellar Envelopes, Visible Spectrum

Scientific paper

Rapid observations of Hα profiles of eight Be stars have been
obtained and it is found that rapid (in a time-scale of 4 to 6 minutes)
and irregular variations of total emission strength of Hα line are
present in these stars. It has been suggested that these variations may
be due to the material circulation in the envelope of Be stars.

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