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Spectral and photometric study of Be Stars in the first exoplanet fields of CoRoT

  • Thierry Semaan (a1), Christophe Martayan (a1) (a2), Yves Frémat (a1) (a3), Anne-Marie Hubert (a1), Juan Gutiérrez Soto (a1) (a4), Coralie Neiner (a5) and Juan Zorec (a6)...

Abstract

First we investigate the spectral and photometric properties (colours, magnitudes) of a sample of faint Be stars observed in the first exoplanet fields of CoRoT (IR1, LRA1 and LRC1). We determine the fundamental parameters by fitting ESO-FLAMES/GIRAFFE spectra with synthetic models taking account for non-LTE effects. After that we correct these parameters from fast rotation effects. We also study the location of each star in the (logL vs logT) HR diagram. Second we start to analyse the CoRoT light curves to investigate further the possible correlation between the pulsating properties and the fundamental parameters of the stars.

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References

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Ballereau, D., Chauville, J., & Zorec, J. 1995, A&AS 111, 423
Frémat, Y., Zorec, J., Hubert, A.-M., & Floquet, M. 2005, A&A 440, 305
Hubeny, I. & Lanz, T. 1995, ApJ 439, 875
Kurucz, R. 1993, Smithsonian Astrophys. Obs., CD-ROM No. 13
Miglio, A., Montalbán, J., & Dupret, M.-A. 2007, Communications in Asteroseismology, 151, 48
Schaller, G., Schaerer, D., Meynet, G., & Maeder, A. 1992, A&AS, 96, 269
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Spectral and photometric study of Be Stars in the first exoplanet fields of CoRoT

  • Thierry Semaan (a1), Christophe Martayan (a1) (a2), Yves Frémat (a1) (a3), Anne-Marie Hubert (a1), Juan Gutiérrez Soto (a1) (a4), Coralie Neiner (a5) and Juan Zorec (a6)...

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