CONSTRUCTING A ONE-SOLAR-MASS EVOLUTIONARY SEQUENCE USING ASTEROSEISMIC DATA FROM KEPLER

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

Authors

Silva Aguirre, V (Author) Other; Chaplin, WJ (Author) Other; Ballot, J (Author) Other; Basu, S (Author) Other; Bedding, TR (Author) Other; Serenelli, AM (Author) Other; Verner, GA (Author) Other; Miglio, A (Author) Other; Monteiro, MJPFG (Author) FCUP; Weiss, A (Author) Other; Appourchaux, T (Author) Other; Bonanno, A (Author) Other; Broomhall, AM (Author) Other; Bruntt, H (Author) Other; Campante, TL (Author) Other; Casagrande, L (Author) Other; Corsaro, E (Author) Other; Elsworth, Y (Author) Other; Garcia, RA (Author) Other; Gaulme, P (Author) Other; Handberg, R (Author) Other; Hekker, S (Author) Other; Huber, D (Author) Other; Karoff, C (Author) Other; Mathur, S (Author) Other; Mosser, B (Author) Other; Salabert, D (Author) Other; Schoenrich, R (Author) Other; Sousa, SG (Author) FCUP; Stello, D (Author) Other; White, TR (Author) Other; Christensen Dalsgaard, J (Author) Other; Gilliland, RL (Author) Other; Kawaler, SD (Author) Other; Kjeldsen, H (Author) Other; Houdek, G (Author) Other; Metcalfe, TS (Author) Other; Molenda Zakowicz, J (Author) Other; Thompson, MJ (Author) Other; Caldwell, DA (Author) Other; Christiansen, JL (Author) Other; Wohler, B (Author) Other

Journal

Title: Astrophysical Journal Letters

Vol. 740

Final page: L2

ISSN: 2041-8205

Publisher: American Astronomical Society

Indexing

ISI Web of Knowledge - 35 Citations

Scopus - 35 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

CORDIS: Physical sciences > Astronomy

Other information

Authenticus ID: P-002-KJA

DOI: 10.1088/2041-8205/740/1/l2

Abstract (EN): Asteroseismology of solar-type stars has entered a new era of large surveys with the success of the NASA Kepler mission, which is providing exquisite data on oscillations of stars across the Hertzsprung-Russell diagram. From the time-series photometry, the two seismic parameters that can be most readily extracted are the large frequency separation (Delta nu) and the frequency of maximum oscillation power (nu(max)). After the survey phase, these quantities are available for hundreds of solar-type stars. By scaling from solar values, we use these two asteroseismic observables to identify for the first time an evolutionary sequence of 1 M-circle dot field stars, without the need for further information from stellar models. Comparison of our determinations with the few available spectroscopic results shows an excellent level of agreement. We discuss the potential of the method for differential analysis throughout the main-sequence evolution and the possibility of detecting twins of very well-known stars.

Language: English

Type (Professor's evaluation): Scientific