Asteroseismic diagrams from a survey of solar-like oscillations with Kepler

Timothy R. White, Timothy R. Bedding, Dennis Stello, Thierry Appourchaux, Jérme Ballot, Othman Benomar, Alfio Bonanno, Anne Marie Broomhall, Tiago L. Campante, William J. Chaplin, Jørgen Christensen-Dalsgaard, Enrico Corsaro, Gülnur Doǧan, Yvonne P. Elsworth, Stephen T. Fletcher, Rafael A. García, Patrick Gaulme, Rasmus Handberg, Saskia Hekker, Daniel Huber & 13 others Christoffer Karoff, Hans Kjeldsen, Savita Mathur, Benoit Mosser, Mario J.P.F.G. Monteiro, Clara Régulo, David Salabert, Victor Silva Aguirre, Michael J. Thompson, Graham Verner, Robert L. Morris, Dwight T. Sanderfer, Shawn E. Seader

Research output: Contribution to journalArticle

Abstract

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 (Δν), the small frequency separation between modes of l = 0 and l = 2 (δν02) , and the dimensionless offset (ε). These measurements allow us to construct asteroseismic diagrams, namely the so-called Christensen-Dalsgaard diagram of δν02 versusΔν, and the recently re-introduced ε 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 ε 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 (US)
Article numberL3
JournalAstrophysical Journal Letters
Volume742
Issue number1
DOIs
StatePublished - Nov 20 2011

Fingerprint

solar oscillations
diagram
oscillation
diagrams
stars
subgiant stars
Kepler mission
F stars
main sequence stars
photometry
time series
oscillations

Keywords

  • stars: oscillations

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

White, T. R., Bedding, T. R., Stello, D., Appourchaux, T., Ballot, J., Benomar, O., ... Seader, S. E. (2011). Asteroseismic diagrams from a survey of solar-like oscillations with Kepler. Astrophysical Journal Letters, 742(1), [L3]. https://doi.org/10.1088/2041-8205/742/1/L3

Asteroseismic diagrams from a survey of solar-like oscillations with Kepler. / White, Timothy R.; Bedding, Timothy R.; Stello, Dennis; Appourchaux, Thierry; Ballot, Jérme; Benomar, Othman; Bonanno, Alfio; Broomhall, Anne Marie; Campante, Tiago L.; Chaplin, William J.; Christensen-Dalsgaard, Jørgen; Corsaro, Enrico; Doǧan, Gülnur; Elsworth, Yvonne P.; Fletcher, Stephen T.; García, Rafael A.; Gaulme, Patrick; Handberg, Rasmus; Hekker, Saskia; Huber, Daniel; Karoff, Christoffer; Kjeldsen, Hans; Mathur, Savita; Mosser, Benoit; Monteiro, Mario J.P.F.G.; Régulo, Clara; Salabert, David; Silva Aguirre, Victor; Thompson, Michael J.; Verner, Graham; Morris, Robert L.; Sanderfer, Dwight T.; Seader, Shawn E.

In: Astrophysical Journal Letters, Vol. 742, No. 1, L3, 20.11.2011.

Research output: Contribution to journalArticle

White, TR, Bedding, TR, Stello, D, Appourchaux, T, Ballot, J, Benomar, O, Bonanno, A, Broomhall, AM, Campante, TL, Chaplin, WJ, Christensen-Dalsgaard, J, Corsaro, E, Doǧan, G, Elsworth, YP, Fletcher, ST, García, RA, Gaulme, P, Handberg, R, Hekker, S, Huber, D, Karoff, C, Kjeldsen, H, Mathur, S, Mosser, B, Monteiro, MJPFG, Régulo, C, Salabert, D, Silva Aguirre, V, Thompson, MJ, Verner, G, Morris, RL, Sanderfer, DT & Seader, SE 2011, 'Asteroseismic diagrams from a survey of solar-like oscillations with Kepler', Astrophysical Journal Letters, vol. 742, no. 1, L3. https://doi.org/10.1088/2041-8205/742/1/L3
White TR, Bedding TR, Stello D, Appourchaux T, Ballot J, Benomar O et al. Asteroseismic diagrams from a survey of solar-like oscillations with Kepler. Astrophysical Journal Letters. 2011 Nov 20;742(1). L3. https://doi.org/10.1088/2041-8205/742/1/L3
White, Timothy R. ; Bedding, Timothy R. ; Stello, Dennis ; Appourchaux, Thierry ; Ballot, Jérme ; Benomar, Othman ; Bonanno, Alfio ; Broomhall, Anne Marie ; Campante, Tiago L. ; Chaplin, William J. ; Christensen-Dalsgaard, Jørgen ; Corsaro, Enrico ; Doǧan, Gülnur ; Elsworth, Yvonne P. ; Fletcher, Stephen T. ; García, Rafael A. ; Gaulme, Patrick ; Handberg, Rasmus ; Hekker, Saskia ; Huber, Daniel ; Karoff, Christoffer ; Kjeldsen, Hans ; Mathur, Savita ; Mosser, Benoit ; Monteiro, Mario J.P.F.G. ; Régulo, Clara ; Salabert, David ; Silva Aguirre, Victor ; Thompson, Michael J. ; Verner, Graham ; Morris, Robert L. ; Sanderfer, Dwight T. ; Seader, Shawn E. / Asteroseismic diagrams from a survey of solar-like oscillations with Kepler. In: Astrophysical Journal Letters. 2011 ; Vol. 742, No. 1.
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AU - Verner, Graham

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N2 - 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 (Δν), the small frequency separation between modes of l = 0 and l = 2 (δν02) , and the dimensionless offset (ε). These measurements allow us to construct asteroseismic diagrams, namely the so-called Christensen-Dalsgaard diagram of δν02 versusΔν, and the recently re-introduced ε 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 ε and T eff that allows for the unambiguous determination of radial order and should help resolve the problem of mode identification in F stars.

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