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astro-ph1998★ 51 cited
Spectroscopy of the roAp star Alpha-Cir -- II. The bisector and equivalent-width of the H-alpha line
I. K. Baldry, M. Viskum, T. R. Bedding +2
We present bisector measurements of the H-alpha line of the rapidly oscillating Ap (roAp) star, Alpha-Cir, obtained from dual-site observations with medium-dispersion spectrographs…
astro-ph1998★ 13 cited
Oscillation mode identifications and models for the delta Scuti star FG Virginis
M. Viskum, H. Kjeldsen, T. R. Bedding +4
We present new spectroscopic and photometric time series observations of the delta Scuti star FG~Vir. We detect the oscillations via changes in the equivalent widths of hydrogen an…