ASTEROSEISMIC DIAGRAMS FROM A SURVEY OF SOLAR-LIKE OSCILLATIONS WITH KEPLER

• Type: Article in International Scientific Journal
• Date: 2011

Authors

White, TR (Author) Other; Timothy R Bedding (Author) Other; Dennis Stello (Author) Other; Thierry Appourchaux (Author) Other; Jerome Ballot (Author) Other; Othman Benomar (Author) Other; Alfio Bonanno (Author) Other; Anne Marie Broomhall (Author) Other; Tiago L Campante (Author) Other; William J Chaplin (Author) Other; Jorgen Christensen Dalsgaard (Author) Other; Enrico Corsaro (Author) Other; Gulnur Dogan (Author) Other; Yvonne P Elsworth (Author) Other; Stephen T Fletcher (Author) Other; Rafael A Garcia (Author) Other; Patrick Gaulme (Author) Other; Rasmus Handberg (Author) Other; Saskia Hekker (Author) Other; Daniel Huber (Author) Other; Christoffer Karoff (Author) Other; Hans Kjeldsen (Author) Other; Savita Mathur (Author) Other; Benoit Mosser (Author) Other; Monteiro, MJPFG (Author) FCUP; Clara Regulo (Author) Other; David Salabert (Author) Other; Victor Silva Aguirre (Author) Other; Michael J Thompson (Author) Other; Graham Verner (Author) Other; Robert L Morris (Author) Other; Dwight T Sanderfer (Author) Other; Shawn E Seader (Author) Other

Journal

Title: Astrophysical Journal Letters

Vol. 742

Final page: L3

ISSN: 2041-8205

Publisher: American Astronomical Society

Indexing

ISI Web of Knowledge - 44 Citations

Scopus - 45 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

CORDIS: Physical sciences > Astronomy

Other information

Authenticus ID: P-002-JJS

DOI: 10.1088/2041-8205/742/1/l3

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific