Characterization of red giant stars in the public Kepler data

S. Hekker, R. L. Gilliland, Y. Elsworth, W. J. Chaplin, J. de Ridder, D. Stello, T. Kallinger, K. A. Ibrahim, T. C. Klaus, J. Li

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

The first public release of long-cadence stellar photometric data collected by the NASA Kepler mission has now been made available. In this paper, we characterize the red giant (G-K) stars in this large sample in terms of their solar-like oscillations. We use published methods and well-known scaling relations in the analysis. Just over 70 per cent of the red giants in the sample show detectable solar-like oscillations, and from these oscillations we are able to estimate the fundamental properties of the stars. This asteroseismic analysis reveals different populations: low-luminosity H-shell burning red giant branch stars, cool high-luminosity red giants on the red giant branch and He-core burning clump and secondary-clump giants.

Original languageEnglish (US)
Pages (from-to)2594-2601
Number of pages8
JournalMonthly Notices of the Royal Astronomical Society
Volume414
Issue number3
DOIs
StatePublished - Jul 2011

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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