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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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Overview
Asteroseismology: need for accurate mode identification
Introduction to pulsational line-profile variability
The case of QQ Vir (PG1325+101)
New high-res spectroscopy of QQ Vir from UVES @ VLT
Cross-correlation technique to obtain high-S/N line profiles
Towards mode identification: the main mode in QQ Vir