Article (Scientific journals)
Kepler Detected Gravity-Mode Period Spacings in a Red Giant Star
Beck, P. G.; Bedding, T. R.; Mosser, B. et al.
2011In Science, 332, p. 205
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Abstract :
[en] Stellar interiors are inaccessible 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 an evolved 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.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Beck, P. G.;  Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, 3001 Leuven, Belgium
Bedding, T. R.;  Sydney Institute for Astronomy, School of Physics, University of Sydney, Sydney, NSW 2006, Australia
Mosser, B.;  Laboratoire d'études spatiales et d'instrumentation en astrophysique, CNRS, Université Pierre et Marie Curie, Université Denis Diderot, Observatoire de Paris, 92195 Meudon, France
Stello, D.;  Sydney Institute for Astronomy, School of Physics, University of Sydney, Sydney, NSW 2006, Australia
Garcia, R.
Kallinger, T.;  Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
Hekker, S.;  University of Birmingham, Birmingham B15 2TT, UK ; Astronomical Institute, University of Amsterdam, Post Office Box 94249, 1090 GE Amsterdam, Netherlands
Elsworth, Y.;  University of Birmingham, Birmingham B15 2TT, UK
Frandsen, S.;  Astronomical Institute, University of Amsterdam, Post Office Box 94249, 1090 GE Amsterdam, Netherlands
Carrier, F.;  Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, 3001 Leuven, Belgium
De Ridder, J.;  Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, 3001 Leuven, Belgium
Aerts, C.;  Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, 3001 Leuven, Belgium ; Institute for Mathematics, Astrophysics, and Particle Physics, Department of Astrophysics, Radboud University, NL-6500 GL Nijmegen, Netherlands
White, T. R.;  Sydney Institute for Astronomy, School of Physics, University of Sydney, Sydney, NSW 2006, Australia
Huber, D.;  Sydney Institute for Astronomy, School of Physics, University of Sydney, Sydney, NSW 2006, Australia
Dupret, Marc-Antoine ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Montalban Iglesias, Josefa ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Miglio, Andrea ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Noels-Grötsch, Arlette ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Chaplin, W. J.;  University of Birmingham, Birmingham B15 2TT, UK
Kjeldsen, H.;  Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
Christensen-Dalsgaard, J.;  Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
Gilliland, R. L.;  Space Telescope Science Institute, Baltimore, MD 21218, USA
Brown, T. M.;  Las Cumbres Observatory Global Telescope, Goleta, CA 93117, USA
Kawaler, S. D.;  Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
Mathur, S.;  High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO 80307, USA
Jenkins, J. M.;  SETI Institute/National Aeronautics and Space Administration (NASA) Ames Research Center, M/S 244-30, Moffett Field, CA 94035, USA
More authors (16 more) Less
Language :
English
Title :
Kepler Detected Gravity-Mode Period Spacings in a Red Giant Star
Publication date :
01 April 2011
Journal title :
Science
ISSN :
0036-8075
eISSN :
1095-9203
Publisher :
American Association for the Advancement of Science, Washington, United States - District of Columbia
Volume :
332
Pages :
205-
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 10 January 2012

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