Spectroscopic Mode-Identification of γ Doradus Stars

We are undertaking an extensive observational campaign of a number of non-radially pulsating stars using the high-resolution HERCULES spectrograph on the 1.0-m telescope at the Mt John University Observatory (MJUO). This paper outlines our campaign and presents preliminary results for one gamma Doradus star, HD40745, as an example. About 250 spectra of HD40745 have been obtained. We have used Wright's (2008) representative cross-correlation line-profile technique to extract line profiles and these have then been analysed using the FAMIAS package (Zima 2008) to derive a spectroscopic mode identification.