Asteroseismic Diagrams From a Survey of Solar-Like Oscillations With Kepler

Anne-Marie Broomhall, William Chaplin, Yvonne Elsworth, Graham Verner

Research output: Contribution to journalArticle

36 Citations (Scopus)


Photometric observations made by the NASA Kepler Mission have led to a dramatic increase in the number of main-sequence and subgiant stars with detected solar-like oscillations. We present an ensemble asteroseismic analysis of 76 solar-type stars. Using frequencies determined from the Kepler time-series photometry, we have measured three asteroseismic parameters that characterize the oscillations: the large frequency separation (Delta nu), the small frequency separation between modes of l = 0 and l = 2 (delta nu(02)), and the dimensionless offset (epsilon). These measurements allow us to construct asteroseismic diagrams, namely the so-called Christensen-Dalsgaard diagram of delta nu(02) versus Delta nu, and the recently re-introduced epsilon diagram. We compare the Kepler results with previously observed solar-type stars and with theoretical models. The positions of stars in these diagrams places constraints on their masses and ages. Additionally, we confirm the observational relationship between epsilon and T-eff that allows for the unambiguous determination of radial order and should help resolve the problem of mode identification in F stars.
Original languageEnglish
Pages (from-to)L3
JournalAstrophysical Journal Letters
Issue number1
Publication statusPublished - 1 Nov 2011


  • stars: oscillations


Dive into the research topics of 'Asteroseismic Diagrams From a Survey of Solar-Like Oscillations With Kepler'. Together they form a unique fingerprint.

Cite this