Kepler Detected Gravity-Mode Period Spacings in a Red Giant Star
- Author(s)
- P. G. Beck, T. R. Bedding, B. Mosser, D. Stello, R. A. Garcia, T. Kallinger, S. Hekker, Y. Elsworth, S. Frandsen, F. Carrier, J. De Ridder, C. Aerts, T. R. White, D. Huber, M.-A. Dupret, J. Montalbán, A. Miglio, A. Noels, W. J. Chaplin, H. Kjeldsen, J. Christensen-Dalsgaard, R. L. Gilliland, T. M. Brown, S. D. Kawaler, S. Mathur, J. M. Jenkins
- Abstract
Stellar interiors are in accessible through direct observations. For this reason, helioseismologists made use of the Sun’s acoustic oscillation modes to tune models of its structure. The quest to detect modes that probe the solar core has been ongoing for decades. We report the detection of mixed modes penetrating all the way to the core of anevolved star from 320 days of observations with the Kepler satellite.The period spacings of these mixed modes are directly dependent on the density gradient between the core region and the convective envelope.
- Organisation(s)
- Department of Astrophysics, Vienna University Library and Archive Services
- External organisation(s)
- Katholieke Universiteit Leuven, The University of Sydney, Université de recherche Paris Sciences et Lettres, Université Paris VII - Paris-Diderot, University of British Columbia (UBC), University of Birmingham, University of Amsterdam (UvA), Radboud University, Université de Liège, Aarhus University, Space Telescope Science Institute, Las Cumbres Observatory Global Telescope, Iowa State University, National Center for Atmospheric Research (NCAR), National Aeronautics & Space Administration (NASA)
- Journal
- Science
- Volume
- 332
- Pages
- 205
- ISSN
- 0036-8075
- DOI
- https://doi.org/10.1126/science.1201939
- Publication date
- 04-2011
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103004 Astrophysics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/kepler-detected-gravitymode-period-spacings-in-a-red-giant-star(9151eea2-2f0d-430e-834c-6260b935a9e0).html