Mt. Suhora survey - Searching for pulsating M dwarfs in Kepler public dataset

A. S. Baran, L. Fox-Machado, J. Lykke, Martin Bo Nielsen, J. H. Telting

    Research output: Contribution to journalReview article

    Abstract

    We present our analysis of Kepler short cadence public data to search for stellar pulsations in M dwarfs. Theoretical calculations predict that these stars may suffer from a fundamental radial mode driven by the nuclear e mechanism. First results published thus far show no significant signal around the expected frequency of 36 c/d down to 1 ppt (parts per thousand). In this paper we include new results obtained from a sample of 86 stars, although a real number of M dwarfs after spectral classification turned out to be small. Unluckily, we have not detected any significant signal typically down to 1-10 ppm (parts per million) in M dwarfs and since the sample of these stars consists of 6 objects only, we cannot make any strong conclusion if the e mechanism drives perturbation in radius to propagate to a detectable amplitude at the surface. As a by-product of our work we provide a spectral classification of 86 Kepler objects, along with their variability and thus far unknown artifacts residing in Kepler photometry.

    Original languageEnglish (US)
    Pages (from-to)325-343
    Number of pages19
    JournalActa Astronomica
    Volume61
    Issue number4
    StatePublished - Dec 1 2011

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    stars
    artifact
    real numbers
    perturbation
    photometry
    artifacts
    radii
    public
    analysis
    calculation
    by-product

    Keywords

    • Low-mass-Asteroseismology
    • Oscillations (includingpulsations) -stars
    • Stars

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

    Cite this

    Baran, A. S., Fox-Machado, L., Lykke, J., Nielsen, M. B., & Telting, J. H. (2011). Mt. Suhora survey - Searching for pulsating M dwarfs in Kepler public dataset. Acta Astronomica, 61(4), 325-343.

    Mt. Suhora survey - Searching for pulsating M dwarfs in Kepler public dataset. / Baran, A. S.; Fox-Machado, L.; Lykke, J.; Nielsen, Martin Bo; Telting, J. H.

    In: Acta Astronomica, Vol. 61, No. 4, 01.12.2011, p. 325-343.

    Research output: Contribution to journalReview article

    Baran, AS, Fox-Machado, L, Lykke, J, Nielsen, MB & Telting, JH 2011, 'Mt. Suhora survey - Searching for pulsating M dwarfs in Kepler public dataset', Acta Astronomica, vol. 61, no. 4, pp. 325-343.
    Baran AS, Fox-Machado L, Lykke J, Nielsen MB, Telting JH. Mt. Suhora survey - Searching for pulsating M dwarfs in Kepler public dataset. Acta Astronomica. 2011 Dec 1;61(4):325-343.
    Baran, A. S. ; Fox-Machado, L. ; Lykke, J. ; Nielsen, Martin Bo ; Telting, J. H. / Mt. Suhora survey - Searching for pulsating M dwarfs in Kepler public dataset. In: Acta Astronomica. 2011 ; Vol. 61, No. 4. pp. 325-343.
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    abstract = "We present our analysis of Kepler short cadence public data to search for stellar pulsations in M dwarfs. Theoretical calculations predict that these stars may suffer from a fundamental radial mode driven by the nuclear e mechanism. First results published thus far show no significant signal around the expected frequency of 36 c/d down to 1 ppt (parts per thousand). In this paper we include new results obtained from a sample of 86 stars, although a real number of M dwarfs after spectral classification turned out to be small. Unluckily, we have not detected any significant signal typically down to 1-10 ppm (parts per million) in M dwarfs and since the sample of these stars consists of 6 objects only, we cannot make any strong conclusion if the e mechanism drives perturbation in radius to propagate to a detectable amplitude at the surface. As a by-product of our work we provide a spectral classification of 86 Kepler objects, along with their variability and thus far unknown artifacts residing in Kepler photometry.",
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    AU - Nielsen, Martin Bo

    AU - Telting, J. H.

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