Detection of solar-like oscillations from kepler photometry of the open cluster NGC 6819

Dennis Stello, Sarbani Basu, Hans Bruntt, Benot Mosser, Ian R. Stevens, Timothy M. Brown, Jørgen Christensen-Dalsgaard, Ronald L. Gilliland, Hans Kjeldsen, Torben Arentoft, Jérme Ballot, Caroline Barban, Timothy R. Bedding, William J. Chaplin, Yvonne P. Elsworth, Rafael A. García, Marie Jo Goupil, Saskia Hekker, Daniel Huber, Savita MathurSøren Meibom, Vinothini Sangaralingam, Charles S. Baldner, Kevin Belkacem, Katia Biazzo, Karsten Brogaard, Juan Carlos Suárez, Francesca D'Antona, Pierre Demarque, Lisa Esch, Ning Gai, Frank Grundahl, Yveline Lebreton, Biwei Jiang, Nada Jevtic, Christoffer Karoff, Andrea Miglio, Joanna Molenda-Akowicz, Josefina Montalbn, Arlette Noels, Teodoro Roca Cortés, Ian W. Roxburgh, Aldo M. Serenelli, Victor Silva Aguirre, Christiaan Sterken, Peter Stine, R. Szabó, Achim Weiss, William J. Borucki, David Koch, Jon M. Jenkins

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Asteroseismology of stars in clusters has been a long-sought goal because the assumption of a common age, distance, and initial chemical composition allows strong tests of the theory of stellar evolution. We report results from the first 34days of science data from the Kepler Mission for the open cluster NGC 6819 - one of the four clusters in the field of view. We obtain the first clear detections of solar-like oscillations in the cluster red giants and are able to measure the large frequency separation, Δν, and the frequency of maximum oscillation power, νmax. We find that the asteroseismic parameters allow us to test cluster membership of the stars, and even with the limited seismic data in hand, we can already identify four possible non-members despite their having a better than 80% membership probability from radial velocity measurements. We are also able to determine the oscillation amplitudes for stars that span about 2 orders of magnitude in luminosity and find good agreement with the prediction that oscillation amplitudes scale as the luminosity to the power of 0.7. These early results demonstrate the unique potential of asteroseismology of the stellar clusters observed by Kepler.

Original languageEnglish
JournalAstrophysical Journal Letters
Volume713
Issue number2 PART 2
DOIs
Publication statusPublished - 2010

Fingerprint

solar oscillations
open clusters
photometry
oscillation
asteroseismology
stars
oscillations
luminosity
Kepler mission
field of view
stellar evolution
seismic data
velocity measurement
radial velocity
chemical composition
detection
prediction
predictions
test

Keywords

  • Open clusters and associations: individual (NGC 6819)
  • Stars: fundamental parameters
  • Stars: Interiors
  • Stars: oscillations
  • Techniques: photometric

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics
  • Nuclear and High Energy Physics

Cite this

Stello, D., Basu, S., Bruntt, H., Mosser, B., Stevens, I. R., Brown, T. M., ... Jenkins, J. M. (2010). Detection of solar-like oscillations from kepler photometry of the open cluster NGC 6819. Astrophysical Journal Letters, 713(2 PART 2). https://doi.org/10.1088/2041-8205/713/2/L182

Detection of solar-like oscillations from kepler photometry of the open cluster NGC 6819. / Stello, Dennis; Basu, Sarbani; Bruntt, Hans; Mosser, Benot; Stevens, Ian R.; Brown, Timothy M.; Christensen-Dalsgaard, Jørgen; Gilliland, Ronald L.; Kjeldsen, Hans; Arentoft, Torben; Ballot, Jérme; Barban, Caroline; Bedding, Timothy R.; Chaplin, William J.; Elsworth, Yvonne P.; García, Rafael A.; Goupil, Marie Jo; Hekker, Saskia; Huber, Daniel; Mathur, Savita; Meibom, Søren; Sangaralingam, Vinothini; Baldner, Charles S.; Belkacem, Kevin; Biazzo, Katia; Brogaard, Karsten; Suárez, Juan Carlos; D'Antona, Francesca; Demarque, Pierre; Esch, Lisa; Gai, Ning; Grundahl, Frank; Lebreton, Yveline; Jiang, Biwei; Jevtic, Nada; Karoff, Christoffer; Miglio, Andrea; Molenda-Akowicz, Joanna; Montalbn, Josefina; Noels, Arlette; Cortés, Teodoro Roca; Roxburgh, Ian W.; Serenelli, Aldo M.; Aguirre, Victor Silva; Sterken, Christiaan; Stine, Peter; Szabó, R.; Weiss, Achim; Borucki, William J.; Koch, David; Jenkins, Jon M.

In: Astrophysical Journal Letters, Vol. 713, No. 2 PART 2, 2010.

Research output: Contribution to journalArticle

Stello, D, Basu, S, Bruntt, H, Mosser, B, Stevens, IR, Brown, TM, Christensen-Dalsgaard, J, Gilliland, RL, Kjeldsen, H, Arentoft, T, Ballot, J, Barban, C, Bedding, TR, Chaplin, WJ, Elsworth, YP, García, RA, Goupil, MJ, Hekker, S, Huber, D, Mathur, S, Meibom, S, Sangaralingam, V, Baldner, CS, Belkacem, K, Biazzo, K, Brogaard, K, Suárez, JC, D'Antona, F, Demarque, P, Esch, L, Gai, N, Grundahl, F, Lebreton, Y, Jiang, B, Jevtic, N, Karoff, C, Miglio, A, Molenda-Akowicz, J, Montalbn, J, Noels, A, Cortés, TR, Roxburgh, IW, Serenelli, AM, Aguirre, VS, Sterken, C, Stine, P, Szabó, R, Weiss, A, Borucki, WJ, Koch, D & Jenkins, JM 2010, 'Detection of solar-like oscillations from kepler photometry of the open cluster NGC 6819', Astrophysical Journal Letters, vol. 713, no. 2 PART 2. https://doi.org/10.1088/2041-8205/713/2/L182
Stello, Dennis ; Basu, Sarbani ; Bruntt, Hans ; Mosser, Benot ; Stevens, Ian R. ; Brown, Timothy M. ; Christensen-Dalsgaard, Jørgen ; Gilliland, Ronald L. ; Kjeldsen, Hans ; Arentoft, Torben ; Ballot, Jérme ; Barban, Caroline ; Bedding, Timothy R. ; Chaplin, William J. ; Elsworth, Yvonne P. ; García, Rafael A. ; Goupil, Marie Jo ; Hekker, Saskia ; Huber, Daniel ; Mathur, Savita ; Meibom, Søren ; Sangaralingam, Vinothini ; Baldner, Charles S. ; Belkacem, Kevin ; Biazzo, Katia ; Brogaard, Karsten ; Suárez, Juan Carlos ; D'Antona, Francesca ; Demarque, Pierre ; Esch, Lisa ; Gai, Ning ; Grundahl, Frank ; Lebreton, Yveline ; Jiang, Biwei ; Jevtic, Nada ; Karoff, Christoffer ; Miglio, Andrea ; Molenda-Akowicz, Joanna ; Montalbn, Josefina ; Noels, Arlette ; Cortés, Teodoro Roca ; Roxburgh, Ian W. ; Serenelli, Aldo M. ; Aguirre, Victor Silva ; Sterken, Christiaan ; Stine, Peter ; Szabó, R. ; Weiss, Achim ; Borucki, William J. ; Koch, David ; Jenkins, Jon M. / Detection of solar-like oscillations from kepler photometry of the open cluster NGC 6819. In: Astrophysical Journal Letters. 2010 ; Vol. 713, No. 2 PART 2.
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AU - Stello, Dennis

AU - Basu, Sarbani

AU - Bruntt, Hans

AU - Mosser, Benot

AU - Stevens, Ian R.

AU - Brown, Timothy M.

AU - Christensen-Dalsgaard, Jørgen

AU - Gilliland, Ronald L.

AU - Kjeldsen, Hans

AU - Arentoft, Torben

AU - Ballot, Jérme

AU - Barban, Caroline

AU - Bedding, Timothy R.

AU - Chaplin, William J.

AU - Elsworth, Yvonne P.

AU - García, Rafael A.

AU - Goupil, Marie Jo

AU - Hekker, Saskia

AU - Huber, Daniel

AU - Mathur, Savita

AU - Meibom, Søren

AU - Sangaralingam, Vinothini

AU - Baldner, Charles S.

AU - Belkacem, Kevin

AU - Biazzo, Katia

AU - Brogaard, Karsten

AU - Suárez, Juan Carlos

AU - D'Antona, Francesca

AU - Demarque, Pierre

AU - Esch, Lisa

AU - Gai, Ning

AU - Grundahl, Frank

AU - Lebreton, Yveline

AU - Jiang, Biwei

AU - Jevtic, Nada

AU - Karoff, Christoffer

AU - Miglio, Andrea

AU - Molenda-Akowicz, Joanna

AU - Montalbn, Josefina

AU - Noels, Arlette

AU - Cortés, Teodoro Roca

AU - Roxburgh, Ian W.

AU - Serenelli, Aldo M.

AU - Aguirre, Victor Silva

AU - Sterken, Christiaan

AU - Stine, Peter

AU - Szabó, R.

AU - Weiss, Achim

AU - Borucki, William J.

AU - Koch, David

AU - Jenkins, Jon M.

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N2 - Asteroseismology of stars in clusters has been a long-sought goal because the assumption of a common age, distance, and initial chemical composition allows strong tests of the theory of stellar evolution. We report results from the first 34days of science data from the Kepler Mission for the open cluster NGC 6819 - one of the four clusters in the field of view. We obtain the first clear detections of solar-like oscillations in the cluster red giants and are able to measure the large frequency separation, Δν, and the frequency of maximum oscillation power, νmax. We find that the asteroseismic parameters allow us to test cluster membership of the stars, and even with the limited seismic data in hand, we can already identify four possible non-members despite their having a better than 80% membership probability from radial velocity measurements. We are also able to determine the oscillation amplitudes for stars that span about 2 orders of magnitude in luminosity and find good agreement with the prediction that oscillation amplitudes scale as the luminosity to the power of 0.7. These early results demonstrate the unique potential of asteroseismology of the stellar clusters observed by Kepler.

AB - Asteroseismology of stars in clusters has been a long-sought goal because the assumption of a common age, distance, and initial chemical composition allows strong tests of the theory of stellar evolution. We report results from the first 34days of science data from the Kepler Mission for the open cluster NGC 6819 - one of the four clusters in the field of view. We obtain the first clear detections of solar-like oscillations in the cluster red giants and are able to measure the large frequency separation, Δν, and the frequency of maximum oscillation power, νmax. We find that the asteroseismic parameters allow us to test cluster membership of the stars, and even with the limited seismic data in hand, we can already identify four possible non-members despite their having a better than 80% membership probability from radial velocity measurements. We are also able to determine the oscillation amplitudes for stars that span about 2 orders of magnitude in luminosity and find good agreement with the prediction that oscillation amplitudes scale as the luminosity to the power of 0.7. These early results demonstrate the unique potential of asteroseismology of the stellar clusters observed by Kepler.

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KW - Stars: fundamental parameters

KW - Stars: Interiors

KW - Stars: oscillations

KW - Techniques: photometric

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