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Time-resolved high-resolution spectroscopy of the pulsating
sdB star QQ Vir (PG1325+101)
John Telting et al., Shanghai, July 2009
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New time-resolved high-resolution spectroscopy of QQ Vir
To investigate the line-profile variations of the main mode, we
folded
the 776 spectra of QQ Vir according to pulsational phase, onto 12 bins.
The pulsational line-profile variability of the He 4471 line is evident