000002312 001__ 2312
000002312 005__ 20160701171703.0
000002312 0247_ $$2DOI$$a10.1051/0004-6361/200911928
000002312 037__ $$aASTROimport-469
000002312 100__ $$aHuat, A.-L.
000002312 245__ $$aThe B0.5IVe CoRoT target HD 49330. I. Photometric analysis from CoRoT data
000002312 260__ $$c2009
000002312 520__ $$aContext: Be stars undergo outbursts producing a circumstellar disk from the ejected material. The beating of non-radial pulsations has been put forward as a possible mechanism of ejection. Aims: We analyze the pulsational behavior of the early B0.5IVe star HD 49330 observed during the first CoRoT long run towards the Galactical anticenter (LRA1). This Be star is located close to the lower edge of the ß Cephei instability strip in the HR diagram and showed a 0.03 mag outburst during the CoRoT observations. It is thus an ideal case for testing the aforementioned hypothesis. Methods: We analyze the CoRoT light curve of HD 49330 using Fourier methods and non-linear least square fitting. Results: In this star, we find pulsation modes typical of ß Cep stars (p modes) and SPB stars (g modes) with amplitude variations along the run directly correlated with the outburst. These results provide new clues about the origin of the Be phenomenon as well as strong constraints on the seismic modelling of Be stars. Tables 3 to 7 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/506/95
000002312 700__ $$a Hubert, A.-M.
000002312 700__ $$a Baudin, F.
000002312 700__ $$a Floquet, M.
000002312 700__ $$a Neiner, C.
000002312 700__ $$a Frémat, Y.
000002312 700__ $$a Gutiérrez-Soto, J.
000002312 700__ $$a Andrade, L.
000002312 700__ $$a de Batz, B.
000002312 700__ $$a Diago, P. D.
000002312 700__ $$a Emilio, M.
000002312 700__ $$a Espinosa Lara, F.
000002312 700__ $$a Fabregat, J.
000002312 700__ $$a Janot-Pacheco, E.
000002312 700__ $$a Leroy, B.
000002312 700__ $$a Martayan, C.
000002312 700__ $$a Semaan, T.
000002312 700__ $$a Suso, J.
000002312 700__ $$a Auvergne, M.
000002312 700__ $$a Catala, C.
000002312 700__ $$a Michel, E.
000002312 700__ $$a Samadi, R.
000002312 773__ $$c95-101$$i1$$pAstronomy and Astrophysics$$v506$$y2009
000002312 85642 $$ahttp://esoads.eso.org/abs/2009A%26A...506...95H
000002312 905__ $$apublished in
000002312 980__ $$aREFERD