000001995 001__ 1995
000001995 005__ 20160701171656.0
000001995 0247_ $$2DOI$$a10.1051/0004-6361:20078523
000001995 037__ $$aASTROimport-152
000001995 100__ $$aBruntt, H.
000001995 245__ $$aA spectroscopic study of southern (candidate) γ Doradus stars. II. Detailed abundance analysis and fundamental parameters
000001995 260__ $$c2008
000001995 520__ $$aContext: The γ Doradus stars are a recent class of variable main sequence F-type stars located on the red edge of the Cepheid instability strip. They pulsate in gravity modes, and this makes them particularly interesting for detailed asteroseismic analysis, which can provide fundamental knowledge of properties near the convective cores of intermediate-mass main sequence stars.  Aims: To improve current understanding of γ Dor stars through theoretical modelling, additional constraints are needed. Our aim is to estimate the fundamental atmospheric parameters and determine the chemical composition of these stars. Detailed analyses of single stars have previously suggested links to Am and λ Boo stars, so we wish to explore this interesting connection between chemical peculiarity and pulsation.  Methods: We analysed a sample of γ Dor stars for the first time, including nine bona fide and three candidate members of the class. We determined the fundamental atmospheric parameters and compared the abundance pattern with other A-type stars. We used the semi-automatic software package VWA for the analysis. This code relies on the calculation of synthetic spectra and thus takes line-blending into account. This is important because of the fast rotation in some of the sample stars, and we made a thorough analysis of how VWA performs when increasing v sin i. We obtained good results in agreement with previously derived fundamental parameters and abundances in a few selected reference stars with properties similar to the γ Dor stars.   Results: We find that the abundance pattern in the γ Dor stars is not distinct from the constant A- and F-type stars we analysed. Appendices A and B are only available in electronic form at http://www.aanda.org 
000001995 700__ $$a De Cat, P.
000001995 700__ $$a Aerts, C.
000001995 773__ $$c487-496$$i2$$pAstronomy and Astrophysics$$v478$$y2008
000001995 85642 $$ahttp://esoads.eso.org/abs/2008A%26A...478..487B
000001995 905__ $$apublished in
000001995 980__ $$aREFERD