Spectrum analysis and seismic interpretation of a solar-like pulsator (HD 49933) observed by CoRoT

Othman Benomar, F. Baudin, J. P. Marques, M. J. Goupil, Y. Lebreton, S. Deheuvels

    Research output: Contribution to journalArticle

    Abstract

    The star HD 49933 has been observed by the mission CoRoT two times (for 60 and 137 days). Its spectrum shows a wealth of oscillation modes but was found difficult to analyse. In the following, we summarize why it was so, and then present a modeling of the star using seismic constraints and show the effect of the microscopic diffusion and of the overshoot in the modeling. We conclude that some convective overshoot from the core is needed while it is difficult to give a definitive conclusion concerning the effect of the microscopic diffusion on the modeling of HD 49933 (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

    Original languageEnglish (US)
    Pages (from-to)956-960
    Number of pages5
    JournalAstronomische Nachrichten
    Volume331
    Issue number9-10
    DOIs
    StatePublished - Dec 1 2010

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    spectrum analysis
    stars
    modeling
    oscillations
    oscillation
    analysis
    effect

    Keywords

    • Methods: data analysis
    • Stars: individual (HD 49933)
    • Stars: interiors
    • Stars: oscillations

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

    Cite this

    Benomar, O., Baudin, F., Marques, J. P., Goupil, M. J., Lebreton, Y., & Deheuvels, S. (2010). Spectrum analysis and seismic interpretation of a solar-like pulsator (HD 49933) observed by CoRoT. Astronomische Nachrichten, 331(9-10), 956-960. https://doi.org/10.1002/asna.201011435

    Spectrum analysis and seismic interpretation of a solar-like pulsator (HD 49933) observed by CoRoT. / Benomar, Othman; Baudin, F.; Marques, J. P.; Goupil, M. J.; Lebreton, Y.; Deheuvels, S.

    In: Astronomische Nachrichten, Vol. 331, No. 9-10, 01.12.2010, p. 956-960.

    Research output: Contribution to journalArticle

    Benomar, O, Baudin, F, Marques, JP, Goupil, MJ, Lebreton, Y & Deheuvels, S 2010, 'Spectrum analysis and seismic interpretation of a solar-like pulsator (HD 49933) observed by CoRoT', Astronomische Nachrichten, vol. 331, no. 9-10, pp. 956-960. https://doi.org/10.1002/asna.201011435
    Benomar, Othman ; Baudin, F. ; Marques, J. P. ; Goupil, M. J. ; Lebreton, Y. ; Deheuvels, S. / Spectrum analysis and seismic interpretation of a solar-like pulsator (HD 49933) observed by CoRoT. In: Astronomische Nachrichten. 2010 ; Vol. 331, No. 9-10. pp. 956-960.
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    AU - Goupil, M. J.

    AU - Lebreton, Y.

    AU - Deheuvels, S.

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