Browsing Articles by Author "Hekker, S."

Browsing Articles by Author "Hekker, S."

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    Asteroseismology of red giants from the first four months of Kepler data: fundamental stellar parameters 
    Gruberbauer, Michael; Kallinger, T.; Mosser, B.; Hekker, S.; Huber, D.; Stello, D.; Mathur, S.; Basu, S.; Bedding, T. R.; Chaplin, W. J. (EDP Sciences, 2010-10)
    Context. Clear power excess in a frequency range typical for solar-type oscillations in red giants has been detected in more than 1000 stars, which have been observed during the first 138 days of the science operation of ...

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    The connection between stellar granulation and oscillation as seen by the Kepler mission 
    Kallinger, T.; De Ridder, J.; Hekker, S.; Mathur, S.; Mosser, B.; Gruberbauer, Michael; Garcia, R. A.; Karoff, C.; Ballot, J. (EDP Sciences, 2014-10)
    Context. The long and almost continuous observations by Kepler show clear evidence of a granulation background signal in a large sample of stars, which is interpreted as the surface manifestation of convection. It has been ...

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    Evolutionary influences on the structure of red-giant acoustic oscillation spectra from 600d of Kepler observations 
    Guenther, David B.; Gruberbauer, Michael; Kallinger, T.; Hekker, S.; Mosser, B.; De Ridder, J.; Bedding, T. R.; Elsworth, Y. P.; Stello, D.; Basu, S. (EDP Sciences, 2012-05)
    Context. It was recently discovered that the period spacings of mixed pressure/gravity dipole modes in red giants permit a distinction between the otherwise unknown evolutionary stage of these stars. The Kepler space mission ...

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    Solar-like oscillations in low-luminosity red giants: first results from Kepler 
    Gruberbauer, Michael; Bedding, T. R.; Huber, D.; Stello, D.; Elsworth, Y. P.; Hekker, S.; Kallinger, T.; Mathur, S.; Mosser, B.; Preston, H. L. (American Astronomical Society, 2010-04-20)
    We have measured solar-like oscillations in red giants using time-series photometry from the first 34 days of science operations of the Kepler Mission. The light curves, obtained with 30 minute sampling, reveal clear ...

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