Short period spectral variability in the Be stars I: eta Centauri and epsilon Capricorni

Details Short period spectral variability in the Be stars I: eta Centauri and epsilon Capricorni Short period spectral variability in the Be stars I: eta Centauri and epsilon Capricorni

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jad.....8....1b&link_type=abstract

The Journal of Astronomical Data, Vol. 8, 2002

Astronomy and Astrophysics

Astronomy

Scientific paper

We present high-dispersion echelle spectra of two Be stars, eta Cen (819 spectra) and epsilon Cap (121 spectra), which were intensively monitored for line profile variations. Analysis of these data show that the periodic line profile variations are strongly visible in the circumstellar medium, suggesting that they are probably due to co-rotating circumstellar clouds. The complexity of the line profiles and the nature of the period analysis may account for apparent multiperiodicity which is sometimes reported in the radial velocities.

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