Published May 1, 2011 | Version v1
Journal article Metadata-only

EVIDENCE FOR THE IMPACT OF STELLAR ACTIVITY ON THE DETECTABILITY OF SOLAR-LIKE OSCILLATIONS OBSERVED BY KEPLER

Creators

  • 1. School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT (United Kingdom)
  • 2. Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006 (Australia)
  • 3. INAF Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123, Catania (Italy)
  • 4. Laboratoire AIM, CEA/DSM, CNRS, Universite Paris Diderot, IRFU/SAp, 91191 Gif-sur-Yvette Cedex (France)
  • 5. Astronomy Unit, Queen Mary, University of London, Mile End Road, London, E1 4NS (United Kingdom)
  • 6. Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520-8101 (United States)
  • 7. Institute of Astronomy, University of Vienna, A-1180 Vienna (Austria)
  • 8. High Altitude Observatory and, Scientific Computing Division, National Center for Atmospheric Research, Boulder, Colorado 80307 (United States)
  • 9. LESIA, CNRS, Universite Pierre et Marie Curie, Universite Denis Diderot, Observatoire de Paris, 92195 Meudon Cedex (France)
  • 10. Materials Engineering Research Institute, Faculty of Arts, Computing, Engineering and Sciences, Sheffield Hallam University, Sheffield, S1 1WB (United Kingdom)
  • 11. Institut d'Astrophysique Spatiale, Universite Paris XI, CNRS (UMR8617), Batiment 121, 91405 Orsay Cedex (France)
  • 12. Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C (Denmark)
  • 13. Astronomical Institute, University of Wroclaw, ul. Kopernika, 11, 51-622 Wroclaw (Poland)
  • 14. Centro de Astrofisica and Faculdade de Ciencias, Universidade do Porto, Rua das Estrelas, 4150-762 (Portugal)

Description

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.

Availability note (English)

Available from http://dx.doi.org/10.1088/2041-8205/732/1/L5

Additional details

Identifiers

DOI
10.1088/2041-8205/732/1/L5;

Publishing Information

Journal Title
Astrophysical Journal Letters
Journal Volume
732
Journal Issue
1
Journal Page Range
[6 p.]
ISSN
2041-8205

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43040533
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
MAGNETIC FIELDS; OSCILLATIONS; STARS; STELLAR ACTIVITY