Spectroscopic Mode-Identification of γ Doradus Stars

Details Spectroscopic Mode-Identification of γ Doradus Stars Spectroscopic Mode-Identification of γ Doradus Stars

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1170..474m&link_type=abstract

STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION: Proceedings of the International Conference. AIP Conference Proceedin

Physics

Pulsations, Oscillations, And Stellar Seismology, Low-Amplitude Blue Variables, Spectroscopy And Spectrophotometry

Scientific paper

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 γ 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.

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