Evidence for the impact of stellar activity on the detectability of solar-like oscillations observed by Kepler

W. J. Chaplin, T. R. Bedding, A. Bonanno, A. M. Broomhall, R. A. García, S. Hekker, D. Huber, G. A. Verner, S. Basu, Y. Elsworth, G. Houdek, S. Mathur, B. Mosser, R. New, I. R. Stevens, T. Appourchaux, C. Karoff, T. S. Metcalfe, J. Molenda-Zakowicz, M. J.P.F.G. MonteiroM. J. Thompson, J. Christensen-Dalsgaard, R. L. Gilliland, S. D. Kawaler, H. Kjeldsen, J. Ballot, O. Benomar, E. Corsaro, T. L. Campante, P. Gaulme, S. J. Hale, R. Handberg, E. Jarvis, C. Régulo, I. W. Roxburgh, D. Salabert, D. Stello, F. Mullally, J. Li, W. Wohler

Research output: Contribution to journalArticle

Abstract

We use photometric observations of solar-type stars, made by the NASA Kepler Mission, to conduct a statistical study of the impact of stellar surface activity on the detectability of solar-like oscillations. We find that the number of stars with detected oscillations falls significantly with increasing levels of activity. The results present strong evidence for the impact of magnetic activity on the properties of near-surface convection in the stars, which appears to inhibit the amplitudes of the stochastically excited, intrinsically damped solar-like oscillations.

Original languageEnglish (US)
Article numberL5
JournalAstrophysical Journal Letters
Volume732
Issue number1 PART II
DOIs
StatePublished - May 1 2011

Keywords

  • stars: activity
  • stars: interiors
  • stars: late-type
  • stars: magnetic field
  • stars: oscillations

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Chaplin, W. J., Bedding, T. R., Bonanno, A., Broomhall, A. M., García, R. A., Hekker, S., Huber, D., Verner, G. A., Basu, S., Elsworth, Y., Houdek, G., Mathur, S., Mosser, B., New, R., Stevens, I. R., Appourchaux, T., Karoff, C., Metcalfe, T. S., Molenda-Zakowicz, J., ... Wohler, W. (2011). Evidence for the impact of stellar activity on the detectability of solar-like oscillations observed by Kepler. Astrophysical Journal Letters, 732(1 PART II), [L5]. https://doi.org/10.1088/2041-8205/732/1/L5