A spectroscopic search for high azimuthal-order pulsation in broad-lined late F- and early G-stars


During 3 consecutive nights, 13 southern Fand Gtype dwarfs and giants outside the conventional δ Scuti instability strip were observed at high spectral (3 km/s) and medium temporal (10-15 min) resolution. The stars were selected for their reported broad spectral lines (v sin i≥ 40 km/s) so that pulsation in higher azimuthal-order nonradial harmonics could… (More)


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