000002331 001__ 2331
000002331 005__ 20160701171703.0
000002331 0247_ $$2DOI$$a10.1051/0004-6361/200911691
000002331 037__ $$aASTROimport-488
000002331 100__ $$aCuypers, J.
000002331 245__ $$aLong-term photometric monitoring with the Mercator telescope. Frequencies and multicolour amplitudes of γ Doradus stars
000002331 260__ $$c2009
000002331 520__ $$aContext: γ Dor stars are excellent targets for asteroseismology since the gravity modes present in these stars probe the deep stellar interiors. Mode identification will improve the knowledge of these stars considerably.  Aims: A selected group of γ Dor stars and some candidates were observed with the Mercator telescope to find and/or confirm the periodicities in the light variations and to derive reliable amplitude ratios in different pass bands.  Methods: A frequency analysis was performed on all new data obtained in the Geneva photometric system. In order to have more reliable and accurate frequencies, the new data were combined with similar data from the literature and with Hipparcos observations. A set of frequencies that minimized the residuals in a harmonic fit was searched for while allowing means and amplitudes to vary from one observation set to another.  Results: Frequencies and amplitudes in the photometric passbands of the Geneva system are given for 21 γ Dor stars. We report the discovery of HD 74504 as a newly found γ Dor star.  Conclusions: Our study provides the first extensive multicolour database for the understanding of gravity modes in F-type stars. Based on observations collected with the Flemish 1.2-m Mercator Telescope at Roque de los Muchachos, La Palma. Tables 5 to 25 are also available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr ( or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/499/967 
000002331 700__ $$a Aerts, C.
000002331 700__ $$a De Cat, P.
000002331 700__ $$a De Ridder, J.
000002331 700__ $$a Goossens, K.
000002331 700__ $$a Schoenaers, C.
000002331 700__ $$a Uytterhoeven, K.
000002331 700__ $$a Acke, B.
000002331 700__ $$a Davignon, G.
000002331 700__ $$a Debosscher, J.
000002331 700__ $$a Decin, L.
000002331 700__ $$a De Meester, W.
000002331 700__ $$a Deroo, P.
000002331 700__ $$a Drummond, R.
000002331 700__ $$a Kolenberg, K.
000002331 700__ $$a Lefever, K.
000002331 700__ $$a Raskin, G.
000002331 700__ $$a Reyniers, M.
000002331 700__ $$a Saesen, S.
000002331 700__ $$a Vandenbussche, B.
000002331 700__ $$a van Malderen, R.
000002331 700__ $$a Verhoelst, T.
000002331 700__ $$a van Winckel, H.
000002331 700__ $$a Waelkens, C.
000002331 773__ $$c967-982$$i3$$pAstronomy and Astrophysics$$v499$$y2009
000002331 85642 $$ahttp://esoads.eso.org/abs/2009A%26A...499..967C
000002331 905__ $$apublished in
000002331 980__ $$aREFERD