000002310 001__ 2310
000002310 005__ 20160701171703.0
000002310 0247_ $$2DOI$$a10.1051/0004-6361/200911901
000002310 037__ $$aASTROimport-467
000002310 100__ $$aDiago, P. D.
000002310 245__ $$aPulsations in the late-type Be star HD 50 209 detected by CoRoT
000002310 260__ $$c2009
000002310 520__ $$aContext: The presence of pulsations in late-type Be stars is still a matter of controversy. It constitutes an important issue to establish the relationship between non-radial pulsations and the mass-loss mechanism in Be stars.  Aims: To contribute to this discussion, we analyse the photometric time series of the B8IVe star HD 50 209 observed by the CoRoT mission in the seismology field.  Methods: We use standard Fourier techniques and linear and non-linear least squares fitting methods to analyse the CoRoT light curve. In addition, we applied detailed modelling of high-resolution spectra to obtain the fundamental physical parameters of the star.  Results: We have found four frequencies which correspond to gravity modes with azimuthal order m=0,-1,-2,-3 with the same pulsational frequency in the co-rotating frame. We also found a rotational period with a frequency of 0.679 cd-1 (7.754 µHz).  Conclusions: HD 50 209 is a pulsating Be star as expected from its position in the HR diagram, close to the SPB instability strip. Based on observations made with the CoRoT satellite, with FEROS at the 2.2 m telescope of the La Silla Observatory under the ESO Large Programme LP178.D-0361 and with Narval at the Télescope Bernard Lyot of the Pic du Midi Observatory. Current address: Valencian International University (VIU), José Pradas Gallen s/n, 12006 Castellón, Spain. Current address: Laboratoire AIM, CEA/DSM-CNRS-Université Paris Diderot; CEA, IRFU, SAp, centre de Saclay, 91191 Gif-sur-Yvette, France. 
000002310 700__ $$a Gutiérrez-Soto, J.
000002310 700__ $$a Auvergne, M.
000002310 700__ $$a Fabregat, J.
000002310 700__ $$a Hubert, A.-M.
000002310 700__ $$a Floquet, M.
000002310 700__ $$a Frémat, Y.
000002310 700__ $$a Garrido, R.
000002310 700__ $$a Andrade, L.
000002310 700__ $$a de Batz, B.
000002310 700__ $$a Emilio, M.
000002310 700__ $$a Espinosa Lara, F.
000002310 700__ $$a Huat, A.-L.
000002310 700__ $$a Janot-Pacheco, E.
000002310 700__ $$a Leroy, B.
000002310 700__ $$a Martayan, C.
000002310 700__ $$a Neiner, C.
000002310 700__ $$a Semaan, T.
000002310 700__ $$a Suso, J.
000002310 700__ $$a Catala, C.
000002310 700__ $$a Poretti, E.
000002310 700__ $$a Rainer, M.
000002310 700__ $$a Uytterhoeven, K.
000002310 700__ $$a Michel, E.
000002310 700__ $$a Samadi, R.
000002310 773__ $$c125-131$$i1$$pAstronomy and Astrophysics$$v506$$y2009
000002310 85642 $$ahttp://esoads.eso.org/abs/2009A%26A...506..125D
000002310 905__ $$apublished in
000002310 980__ $$aREFERD