Characterization of red giant stars in the public Kepler data

S Hekker, RL Gilliland, Yvonne Elsworth, William Chaplin, J De Ridder, D Stello, T Kallinger, KA Ibrahim, TC Klaus, J Li

Research output: Contribution to journalArticle

80 Citations (Scopus)


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
Pages (from-to)2594-2601
Number of pages8
JournalRoyal Astronomical Society. Monthly Notices
Issue number3
Publication statusPublished - 1 Jul 2011


  • techniques: photometric
  • methods: observational
  • stars: oscillations
  • stars: late type


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