Reference : Solar-like oscillations from the depths of the red-giant star KIC 4351319 observed with ...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/110996
Solar-like oscillations from the depths of the red-giant star KIC 4351319 observed with Kepler
English
di Mauro, M. P. [INAF - IASF, Istituto di Astrofisica Spaziale e Fisica Cosmica, Via del Fosso del Cavaliere 100, 00133 Roma, Italy]
Cardini, D. [INAF - IASF, Istituto di Astrofisica Spaziale e Fisica Cosmica, Via del Fosso del Cavaliere 100, 00133 Roma, Italy]
Catanzaro, G. [INAF - Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123 Catania, Italy]
Ventura, R. [INAF - Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123 Catania, Italy]
Barban, C. [LESIA, CNRS, Université Pierre et Marie Curie, Université Denis, Diderot, Observatoire de Paris, 92195 Meudon Cedex, France]
Bedding, T. R. [Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006, Australia]
Christensen-Dalsgaard, J. [Institut for Fysik og Astronomi, Bygn. 1520, Aarhus Universitet, Ny Munkegade, DK-8000 Aarhus C, Denmark]
De Ridder, J. [Institut voor Sterrenkunde, K. U. Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium]
Hekker, S. [School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT; Astronomical Institute 'Anton Pannekoek', University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands]
Huber, D. [Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006, Australia]
Kallinger, T. [Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada; Institute of Astronomy, University of Vienna, 1180 Vienna, Austria]
Miglio, Andrea mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie]
Montalban Iglesias, Josefa mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie]
Mosser, B. [LESIA, CNRS, Université Pierre et Marie Curie, Université Denis, Diderot, Observatoire de Paris, 92195 Meudon Cedex, France]
Stello, D. [Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006, Australia]
Uytterhoeven, K. [Laboratoire AIM, CEA/DSM-CNRS-Université Paris Diderot, CEA, IRFU, SAp, Centre de Saclay, 91191 Gif-sur-Yvette, France; Kiepenheuer-Institut für Sonnenphysik, Schöneckstraße 6, 79104 Freiburg im Breisgau, Germany]
Kinemuchi, K. [Bay Area Environmental Research Institute/NASA Ames Research Center, Moffett Field, CA 94035, USA]
Kjeldsen, H. [Institut for Fysik og Astronomi, Bygn. 1520, Aarhus Universitet, Ny Munkegade, DK-8000 Aarhus C, Denmark]
Mullally, F. [SETI Institute/NASA Ames Research Center, Moffett Field, CA 94035, USA]
Still, M. [Bay Area Environmental Research Institute/NASA Ames Research Center, Moffett Field, CA 94035, USA]
1-Aug-2011
Monthly Notices of the Royal Astronomical Society
Blackwell Publishing
415
3783-3797
Yes (verified by ORBi)
0035-8711
Oxford
United Kingdom
[en] stars: AGB and post-AGB ; stars: evolution ; stars: fundamental parameters ; stars: individual: KIC 4351319 ; stars: oscillations ; stars: solar-type
[en] We present the results of the asteroseismic analysis of the red-giant star KIC 4351319 (TYC 3124-914-1), observed for 30 d in short-cadence mode with the Kepler satellite. The analysis has allowed us to determine the large and small frequency separations, ?Hz and ?Hz, respectively, and the frequency of maximum oscillation power, ?Hz. The high signal-to-noise ratio of the observations allowed us to identify 25 independent pulsation modes whose frequencies range approximately from 300 to ?Hz. The observed oscillation frequencies together with the accurate determination of the atmospheric parameters (effective temperature, gravity and metallicity), provided by additional ground-based spectroscopic observations, enabled us to theoretically interpret the observed oscillation spectrum. KIC 4351319 appears to oscillate with a well-defined solar-type p-mode pattern due to radial acoustic modes and non-radial nearly pure p modes. In addition, several non-radial mixed modes have been identified. Theoretical models well reproduce the observed oscillation frequencies and indicate that this star, located at the base of the ascending red-giant branch, is in the hydrogen-shell-burning phase, with a mass of ˜1.3 M[SUB]&sun;[/SUB], a radius of ? and an age of ˜5.6 Gyr. The main parameters of this star have been determined with an unprecedented level of precision for a red-giant star, with uncertainties of 2 per cent for mass, 7 per cent for age, 1 per cent for radius and 4 per cent for luminosity.
http://hdl.handle.net/2268/110996
10.1111/j.1365-2966.2011.18996.x
http://adsabs.harvard.edu/abs/2011MNRAS.415.3783D
http://de.arxiv.org/abs/1105.1076

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