Spectroscopy of γ Doradus stars. Issue Volume 9:Issue S301(2013) (18th February 2014)

• Record Type: Journal Article
• Authors: Brunsden, E.; Pollard, K. R.; Cottrell, P. L.; Wright, D. J.; De Cat, P.; Kilmartin, P. M.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 9:Issue S301(2013)
• Page Start: 113
• Page End: 116
• Publication Date: 2014-02-18
• Subjects: line: profiles, -- techniques: spectroscopic, -- stars: individual (HD 135825, HD 12901, γ Doradus, HD 49434), -- stars: variables: other, -- stars: oscillations (including pulsations); Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S174392131301418X
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Themusician programme at the University of Canterbury has been successfully identifying pulsation modes in many γ Doradus stars using hundreds of ground-based spectroscopic observations. This paper describes some of the successful mode identifications and emerging patterns of the programme. The hybrid γ Doradus/δ Scuti star HD 49434 remains an enigma, despite the analysis of more than 1700 multi-site high-resolution spectra. A new result for this star is apparently distinct line-profile variations for the γ Doradus and δ Scuti frequencies.