Seismic constraints on rotation of Sun-like star and mass of exoplanet
Identifieur interne : 000486 ( Pmc/Corpus ); précédent : 000485; suivant : 000487Seismic constraints on rotation of Sun-like star and mass of exoplanet
Auteurs : Laurent Gizon ; Jérome Ballot ; Eric Michel ; Thorsten Stahn ; Gérard Vauclair ; Hans Bruntt ; Pierre-Olivier Quirion ; Othman Benomar ; Sylvie Vauclair ; Thierry Appourchaux ; Michel Auvergne ; Annie Baglin ; Caroline Barban ; Fréderic Baudin ; Michaël Bazot ; Tiago Campante ; Claude Catala ; William Chaplin ; Orlagh Creevey ; Sébastien Deheuvels ; Noël Dolez ; Yvonne Elsworth ; Rafael García ; Patrick Gaulme ; Stéphane Mathis ; Savita Mathur ; Benoît Mosser ; Clara Régulo ; Ian Roxburgh ; David Salabert ; Réza Samadi ; Kumiko Sato ; Graham Verner ; Shravan Hanasoge ; Katepalli R. SreenivasanSource :
- Proceedings of the National Academy of Sciences of the United States of America [ 0027-8424 ] ; 2013.
Abstract
Rotation is thought to drive cyclic magnetic activity in the Sun and Sun-like stars. Stellar dynamos, however, are poorly understood owing to the scarcity of observations of rotation and magnetic fields in stars. Here, inferences are drawn on the internal rotation of a distant Sun-like star by studying its global modes of oscillation. We report asteroseismic constraints imposed on the rotation rate and the inclination of the spin axis of the Sun-like star HD 52265, a principal target observed by the CoRoT satellite that is known to host a planetary companion. These seismic inferences are remarkably consistent with an independent spectroscopic observation (rotational line broadening) and with the observed rotation period of star spots. Furthermore, asteroseismology constrains the mass of exoplanet HD 52265b. Under the standard assumption that the stellar spin axis and the axis of the planetary orbit coincide, the minimum spectroscopic mass of the planet can be converted into a true mass of
Url:
DOI: 10.1073/pnas.1303291110
PubMed: 23898183
PubMed Central: 3746883
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PMC:3746883Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Seismic constraints on rotation of Sun-like star and mass of exoplanet</title><author><name sortKey="Gizon, Laurent" sort="Gizon, Laurent" uniqKey="Gizon L" first="Laurent" last="Gizon">Laurent Gizon</name><affiliation><nlm:aff id="aff1"><institution>Max-Planck-Institut für Sonnensystemforschung</institution>, 37191 Katlenburg-Lindau,<country>Germany</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Institut für Astrophysik,<institution>Georg-August-Universität Göttingen</institution>, 37077 Göttingen,<country>Germany</country>;</nlm:aff></affiliation></author><author><name sortKey="Ballot, Jerome" sort="Ballot, Jerome" uniqKey="Ballot J" first="Jérome" last="Ballot">Jérome Ballot</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Michel, Eric" sort="Michel, Eric" uniqKey="Michel E" first="Eric" last="Michel">Eric Michel</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Stahn, Thorsten" sort="Stahn, Thorsten" uniqKey="Stahn T" first="Thorsten" last="Stahn">Thorsten Stahn</name><affiliation><nlm:aff id="aff1"><institution>Max-Planck-Institut für Sonnensystemforschung</institution>, 37191 Katlenburg-Lindau,<country>Germany</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Institut für Astrophysik,<institution>Georg-August-Universität Göttingen</institution>, 37077 Göttingen,<country>Germany</country>;</nlm:aff></affiliation></author><author><name sortKey="Vauclair, Gerard" sort="Vauclair, Gerard" uniqKey="Vauclair G" first="Gérard" last="Vauclair">Gérard Vauclair</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Bruntt, Hans" sort="Bruntt, Hans" uniqKey="Bruntt H" first="Hans" last="Bruntt">Hans Bruntt</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Quirion, Pierre Olivier" sort="Quirion, Pierre Olivier" uniqKey="Quirion P" first="Pierre-Olivier" last="Quirion">Pierre-Olivier Quirion</name><affiliation><nlm:aff id="aff6"><institution>Agence Spatiale Canadienne</institution>, Saint-Hubert, Québec,<country>Canada</country> J3Y 8Y9;</nlm:aff></affiliation></author><author><name sortKey="Benomar, Othman" sort="Benomar, Othman" uniqKey="Benomar O" first="Othman" last="Benomar">Othman Benomar</name><affiliation><nlm:aff id="aff7">Sydney Institute for Astronomy, School of Physics,<institution>University of Sydney</institution>, Sydney, NSW 2006,<country>Australia</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff8">Institut d’Astrophysique Spatiale,<institution>Université Paris Sud</institution>–Centre National de la Recherche Scientifique (Unité Mixte de Recherche 8617), 91405 Orsay Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Vauclair, Sylvie" sort="Vauclair, Sylvie" uniqKey="Vauclair S" first="Sylvie" last="Vauclair">Sylvie Vauclair</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Appourchaux, Thierry" sort="Appourchaux, Thierry" uniqKey="Appourchaux T" first="Thierry" last="Appourchaux">Thierry Appourchaux</name><affiliation><nlm:aff id="aff8">Institut d’Astrophysique Spatiale,<institution>Université Paris Sud</institution>–Centre National de la Recherche Scientifique (Unité Mixte de Recherche 8617), 91405 Orsay Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Auvergne, Michel" sort="Auvergne, Michel" uniqKey="Auvergne M" first="Michel" last="Auvergne">Michel Auvergne</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Baglin, Annie" sort="Baglin, Annie" uniqKey="Baglin A" first="Annie" last="Baglin">Annie Baglin</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Barban, Caroline" sort="Barban, Caroline" uniqKey="Barban C" first="Caroline" last="Barban">Caroline Barban</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Baudin, Frederic" sort="Baudin, Frederic" uniqKey="Baudin F" first="Fréderic" last="Baudin">Fréderic Baudin</name><affiliation><nlm:aff id="aff8">Institut d’Astrophysique Spatiale,<institution>Université Paris Sud</institution>–Centre National de la Recherche Scientifique (Unité Mixte de Recherche 8617), 91405 Orsay Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Bazot, Michael" sort="Bazot, Michael" uniqKey="Bazot M" first="Michaël" last="Bazot">Michaël Bazot</name><affiliation><nlm:aff id="aff9"><institution>Centro de Astrofísica da Universidade do Porto</institution>, 4150-762 Porto,<country>Portugal</country>;</nlm:aff></affiliation></author><author><name sortKey="Campante, Tiago" sort="Campante, Tiago" uniqKey="Campante T" first="Tiago" last="Campante">Tiago Campante</name><affiliation><nlm:aff id="aff9"><institution>Centro de Astrofísica da Universidade do Porto</institution>, 4150-762 Porto,<country>Portugal</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff10">Danish AsteroSeismology Centre, Department of Physics and Astronomy,<institution>University of Aarhus</institution>, 8000 Aarhus C,<country>Denmark</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff11">School of Physics and Astronomy,<institution>University of Birmingham</institution>, Edgbaston, Birmingham B15 2TT,<country>United Kingdom</country>;</nlm:aff></affiliation></author><author><name sortKey="Catala, Claude" sort="Catala, Claude" uniqKey="Catala C" first="Claude" last="Catala">Claude Catala</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Chaplin, William" sort="Chaplin, William" uniqKey="Chaplin W" first="William" last="Chaplin">William Chaplin</name><affiliation><nlm:aff id="aff11">School of Physics and Astronomy,<institution>University of Birmingham</institution>, Edgbaston, Birmingham B15 2TT,<country>United Kingdom</country>;</nlm:aff></affiliation></author><author><name sortKey="Creevey, Orlagh" sort="Creevey, Orlagh" uniqKey="Creevey O" first="Orlagh" last="Creevey">Orlagh Creevey</name><affiliation><nlm:aff id="aff12">Departamento de Astrofísica,<institution>Universidad de La Laguna</institution>, 38206 La Laguna, Tenerife,<country>Spain</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff13"><institution>Instituto de Astrofísica de Canarias</institution>, 38205 La Laguna, Tenerife,<country>Spain</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff14">Laboratoire Lagrange, Unité Mixte de Recherche 7293,<institution>Université de Nice Sophia-Antipolis</institution>, Centre National de la Recherche Scientifique, Observatoire de la Côte d’Azur, 06300 Nice,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Deheuvels, Sebastien" sort="Deheuvels, Sebastien" uniqKey="Deheuvels S" first="Sébastien" last="Deheuvels">Sébastien Deheuvels</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Dolez, Noel" sort="Dolez, Noel" uniqKey="Dolez N" first="Noël" last="Dolez">Noël Dolez</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Elsworth, Yvonne" sort="Elsworth, Yvonne" uniqKey="Elsworth Y" first="Yvonne" last="Elsworth">Yvonne Elsworth</name><affiliation><nlm:aff id="aff11">School of Physics and Astronomy,<institution>University of Birmingham</institution>, Edgbaston, Birmingham B15 2TT,<country>United Kingdom</country>;</nlm:aff></affiliation></author><author><name sortKey="Garcia, Rafael" sort="Garcia, Rafael" uniqKey="Garcia R" first="Rafael" last="García">Rafael García</name><affiliation><nlm:aff id="aff15">Laboratoire Astrophysique, Instrumentation, et Modélisation, Institut de Recherche sur les Lois Fondamentales de l'Univers/Service d'Astrophysique–Commissariat à l’Energie Atomique/Direction des Sciences de la Matière–Centre National de la Recherche Scientifique–<institution>Université Paris Diderot</institution>, 91191 Gif-sur-Yvette Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Gaulme, Patrick" sort="Gaulme, Patrick" uniqKey="Gaulme P" first="Patrick" last="Gaulme">Patrick Gaulme</name><affiliation><nlm:aff id="aff16">Department of Astronomy,<institution>New Mexico State University</institution>, Las Cruces,<addr-line>NM</addr-line> 88003-8001;</nlm:aff></affiliation></author><author><name sortKey="Mathis, Stephane" sort="Mathis, Stephane" uniqKey="Mathis S" first="Stéphane" last="Mathis">Stéphane Mathis</name><affiliation><nlm:aff id="aff15">Laboratoire Astrophysique, Instrumentation, et Modélisation, Institut de Recherche sur les Lois Fondamentales de l'Univers/Service d'Astrophysique–Commissariat à l’Energie Atomique/Direction des Sciences de la Matière–Centre National de la Recherche Scientifique–<institution>Université Paris Diderot</institution>, 91191 Gif-sur-Yvette Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Mathur, Savita" sort="Mathur, Savita" uniqKey="Mathur S" first="Savita" last="Mathur">Savita Mathur</name><affiliation><nlm:aff id="aff17">High Altitude Observatory,<institution>National Center for Atmospheric Research</institution>, Boulder,<addr-line>CO</addr-line> 80307;</nlm:aff></affiliation></author><author><name sortKey="Mosser, Benoit" sort="Mosser, Benoit" uniqKey="Mosser B" first="Benoît" last="Mosser">Benoît Mosser</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Regulo, Clara" sort="Regulo, Clara" uniqKey="Regulo C" first="Clara" last="Régulo">Clara Régulo</name><affiliation><nlm:aff id="aff12">Departamento de Astrofísica,<institution>Universidad de La Laguna</institution>, 38206 La Laguna, Tenerife,<country>Spain</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff13"><institution>Instituto de Astrofísica de Canarias</institution>, 38205 La Laguna, Tenerife,<country>Spain</country>;</nlm:aff></affiliation></author><author><name sortKey="Roxburgh, Ian" sort="Roxburgh, Ian" uniqKey="Roxburgh I" first="Ian" last="Roxburgh">Ian Roxburgh</name><affiliation><nlm:aff id="aff18">Astronomy Unit, School of Physics and Astronomy,<institution>Queen Mary University of London</institution>, London E1 4NS, United Kingdom;</nlm:aff></affiliation></author><author><name sortKey="Salabert, David" sort="Salabert, David" uniqKey="Salabert D" first="David" last="Salabert">David Salabert</name><affiliation><nlm:aff id="aff14">Laboratoire Lagrange, Unité Mixte de Recherche 7293,<institution>Université de Nice Sophia-Antipolis</institution>, Centre National de la Recherche Scientifique, Observatoire de la Côte d’Azur, 06300 Nice,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Samadi, Reza" sort="Samadi, Reza" uniqKey="Samadi R" first="Réza" last="Samadi">Réza Samadi</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Sato, Kumiko" sort="Sato, Kumiko" uniqKey="Sato K" first="Kumiko" last="Sato">Kumiko Sato</name><affiliation><nlm:aff id="aff15">Laboratoire Astrophysique, Instrumentation, et Modélisation, Institut de Recherche sur les Lois Fondamentales de l'Univers/Service d'Astrophysique–Commissariat à l’Energie Atomique/Direction des Sciences de la Matière–Centre National de la Recherche Scientifique–<institution>Université Paris Diderot</institution>, 91191 Gif-sur-Yvette Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Verner, Graham" sort="Verner, Graham" uniqKey="Verner G" first="Graham" last="Verner">Graham Verner</name><affiliation><nlm:aff id="aff11">School of Physics and Astronomy,<institution>University of Birmingham</institution>, Edgbaston, Birmingham B15 2TT,<country>United Kingdom</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff18">Astronomy Unit, School of Physics and Astronomy,<institution>Queen Mary University of London</institution>, London E1 4NS, United Kingdom;</nlm:aff></affiliation></author><author><name sortKey="Hanasoge, Shravan" sort="Hanasoge, Shravan" uniqKey="Hanasoge S" first="Shravan" last="Hanasoge">Shravan Hanasoge</name><affiliation><nlm:aff id="aff1"><institution>Max-Planck-Institut für Sonnensystemforschung</institution>, 37191 Katlenburg-Lindau,<country>Germany</country>;</nlm:aff></affiliation><affiliation><nlm:aff wicri:cut="; and" id="aff19">Department of Geosciences,<institution>Princeton University</institution>, Princeton,<addr-line>NJ</addr-line> 08544</nlm:aff></affiliation></author><author><name sortKey="Sreenivasan, Katepalli R" sort="Sreenivasan, Katepalli R" uniqKey="Sreenivasan K" first="Katepalli R." last="Sreenivasan">Katepalli R. Sreenivasan</name><affiliation><nlm:aff id="aff20">Physics Department and Courant Institute of Mathematical Sciences,<institution>New York University</institution>,<addr-line>New York, NY</addr-line> 10012</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">23898183</idno><idno type="pmc">3746883</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3746883</idno><idno type="RBID">PMC:3746883</idno><idno type="doi">10.1073/pnas.1303291110</idno><date when="2013">2013</date><idno type="wicri:Area/Pmc/Corpus">000486</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000486</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Seismic constraints on rotation of Sun-like star and mass of exoplanet</title><author><name sortKey="Gizon, Laurent" sort="Gizon, Laurent" uniqKey="Gizon L" first="Laurent" last="Gizon">Laurent Gizon</name><affiliation><nlm:aff id="aff1"><institution>Max-Planck-Institut für Sonnensystemforschung</institution>, 37191 Katlenburg-Lindau,<country>Germany</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Institut für Astrophysik,<institution>Georg-August-Universität Göttingen</institution>, 37077 Göttingen,<country>Germany</country>;</nlm:aff></affiliation></author><author><name sortKey="Ballot, Jerome" sort="Ballot, Jerome" uniqKey="Ballot J" first="Jérome" last="Ballot">Jérome Ballot</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Michel, Eric" sort="Michel, Eric" uniqKey="Michel E" first="Eric" last="Michel">Eric Michel</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Stahn, Thorsten" sort="Stahn, Thorsten" uniqKey="Stahn T" first="Thorsten" last="Stahn">Thorsten Stahn</name><affiliation><nlm:aff id="aff1"><institution>Max-Planck-Institut für Sonnensystemforschung</institution>, 37191 Katlenburg-Lindau,<country>Germany</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Institut für Astrophysik,<institution>Georg-August-Universität Göttingen</institution>, 37077 Göttingen,<country>Germany</country>;</nlm:aff></affiliation></author><author><name sortKey="Vauclair, Gerard" sort="Vauclair, Gerard" uniqKey="Vauclair G" first="Gérard" last="Vauclair">Gérard Vauclair</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Bruntt, Hans" sort="Bruntt, Hans" uniqKey="Bruntt H" first="Hans" last="Bruntt">Hans Bruntt</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Quirion, Pierre Olivier" sort="Quirion, Pierre Olivier" uniqKey="Quirion P" first="Pierre-Olivier" last="Quirion">Pierre-Olivier Quirion</name><affiliation><nlm:aff id="aff6"><institution>Agence Spatiale Canadienne</institution>, Saint-Hubert, Québec,<country>Canada</country> J3Y 8Y9;</nlm:aff></affiliation></author><author><name sortKey="Benomar, Othman" sort="Benomar, Othman" uniqKey="Benomar O" first="Othman" last="Benomar">Othman Benomar</name><affiliation><nlm:aff id="aff7">Sydney Institute for Astronomy, School of Physics,<institution>University of Sydney</institution>, Sydney, NSW 2006,<country>Australia</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff8">Institut d’Astrophysique Spatiale,<institution>Université Paris Sud</institution>–Centre National de la Recherche Scientifique (Unité Mixte de Recherche 8617), 91405 Orsay Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Vauclair, Sylvie" sort="Vauclair, Sylvie" uniqKey="Vauclair S" first="Sylvie" last="Vauclair">Sylvie Vauclair</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Appourchaux, Thierry" sort="Appourchaux, Thierry" uniqKey="Appourchaux T" first="Thierry" last="Appourchaux">Thierry Appourchaux</name><affiliation><nlm:aff id="aff8">Institut d’Astrophysique Spatiale,<institution>Université Paris Sud</institution>–Centre National de la Recherche Scientifique (Unité Mixte de Recherche 8617), 91405 Orsay Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Auvergne, Michel" sort="Auvergne, Michel" uniqKey="Auvergne M" first="Michel" last="Auvergne">Michel Auvergne</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Baglin, Annie" sort="Baglin, Annie" uniqKey="Baglin A" first="Annie" last="Baglin">Annie Baglin</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Barban, Caroline" sort="Barban, Caroline" uniqKey="Barban C" first="Caroline" last="Barban">Caroline Barban</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Baudin, Frederic" sort="Baudin, Frederic" uniqKey="Baudin F" first="Fréderic" last="Baudin">Fréderic Baudin</name><affiliation><nlm:aff id="aff8">Institut d’Astrophysique Spatiale,<institution>Université Paris Sud</institution>–Centre National de la Recherche Scientifique (Unité Mixte de Recherche 8617), 91405 Orsay Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Bazot, Michael" sort="Bazot, Michael" uniqKey="Bazot M" first="Michaël" last="Bazot">Michaël Bazot</name><affiliation><nlm:aff id="aff9"><institution>Centro de Astrofísica da Universidade do Porto</institution>, 4150-762 Porto,<country>Portugal</country>;</nlm:aff></affiliation></author><author><name sortKey="Campante, Tiago" sort="Campante, Tiago" uniqKey="Campante T" first="Tiago" last="Campante">Tiago Campante</name><affiliation><nlm:aff id="aff9"><institution>Centro de Astrofísica da Universidade do Porto</institution>, 4150-762 Porto,<country>Portugal</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff10">Danish AsteroSeismology Centre, Department of Physics and Astronomy,<institution>University of Aarhus</institution>, 8000 Aarhus C,<country>Denmark</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff11">School of Physics and Astronomy,<institution>University of Birmingham</institution>, Edgbaston, Birmingham B15 2TT,<country>United Kingdom</country>;</nlm:aff></affiliation></author><author><name sortKey="Catala, Claude" sort="Catala, Claude" uniqKey="Catala C" first="Claude" last="Catala">Claude Catala</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Chaplin, William" sort="Chaplin, William" uniqKey="Chaplin W" first="William" last="Chaplin">William Chaplin</name><affiliation><nlm:aff id="aff11">School of Physics and Astronomy,<institution>University of Birmingham</institution>, Edgbaston, Birmingham B15 2TT,<country>United Kingdom</country>;</nlm:aff></affiliation></author><author><name sortKey="Creevey, Orlagh" sort="Creevey, Orlagh" uniqKey="Creevey O" first="Orlagh" last="Creevey">Orlagh Creevey</name><affiliation><nlm:aff id="aff12">Departamento de Astrofísica,<institution>Universidad de La Laguna</institution>, 38206 La Laguna, Tenerife,<country>Spain</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff13"><institution>Instituto de Astrofísica de Canarias</institution>, 38205 La Laguna, Tenerife,<country>Spain</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff14">Laboratoire Lagrange, Unité Mixte de Recherche 7293,<institution>Université de Nice Sophia-Antipolis</institution>, Centre National de la Recherche Scientifique, Observatoire de la Côte d’Azur, 06300 Nice,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Deheuvels, Sebastien" sort="Deheuvels, Sebastien" uniqKey="Deheuvels S" first="Sébastien" last="Deheuvels">Sébastien Deheuvels</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Dolez, Noel" sort="Dolez, Noel" uniqKey="Dolez N" first="Noël" last="Dolez">Noël Dolez</name><affiliation><nlm:aff id="aff3">Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff4"><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Elsworth, Yvonne" sort="Elsworth, Yvonne" uniqKey="Elsworth Y" first="Yvonne" last="Elsworth">Yvonne Elsworth</name><affiliation><nlm:aff id="aff11">School of Physics and Astronomy,<institution>University of Birmingham</institution>, Edgbaston, Birmingham B15 2TT,<country>United Kingdom</country>;</nlm:aff></affiliation></author><author><name sortKey="Garcia, Rafael" sort="Garcia, Rafael" uniqKey="Garcia R" first="Rafael" last="García">Rafael García</name><affiliation><nlm:aff id="aff15">Laboratoire Astrophysique, Instrumentation, et Modélisation, Institut de Recherche sur les Lois Fondamentales de l'Univers/Service d'Astrophysique–Commissariat à l’Energie Atomique/Direction des Sciences de la Matière–Centre National de la Recherche Scientifique–<institution>Université Paris Diderot</institution>, 91191 Gif-sur-Yvette Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Gaulme, Patrick" sort="Gaulme, Patrick" uniqKey="Gaulme P" first="Patrick" last="Gaulme">Patrick Gaulme</name><affiliation><nlm:aff id="aff16">Department of Astronomy,<institution>New Mexico State University</institution>, Las Cruces,<addr-line>NM</addr-line> 88003-8001;</nlm:aff></affiliation></author><author><name sortKey="Mathis, Stephane" sort="Mathis, Stephane" uniqKey="Mathis S" first="Stéphane" last="Mathis">Stéphane Mathis</name><affiliation><nlm:aff id="aff15">Laboratoire Astrophysique, Instrumentation, et Modélisation, Institut de Recherche sur les Lois Fondamentales de l'Univers/Service d'Astrophysique–Commissariat à l’Energie Atomique/Direction des Sciences de la Matière–Centre National de la Recherche Scientifique–<institution>Université Paris Diderot</institution>, 91191 Gif-sur-Yvette Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Mathur, Savita" sort="Mathur, Savita" uniqKey="Mathur S" first="Savita" last="Mathur">Savita Mathur</name><affiliation><nlm:aff id="aff17">High Altitude Observatory,<institution>National Center for Atmospheric Research</institution>, Boulder,<addr-line>CO</addr-line> 80307;</nlm:aff></affiliation></author><author><name sortKey="Mosser, Benoit" sort="Mosser, Benoit" uniqKey="Mosser B" first="Benoît" last="Mosser">Benoît Mosser</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Regulo, Clara" sort="Regulo, Clara" uniqKey="Regulo C" first="Clara" last="Régulo">Clara Régulo</name><affiliation><nlm:aff id="aff12">Departamento de Astrofísica,<institution>Universidad de La Laguna</institution>, 38206 La Laguna, Tenerife,<country>Spain</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff13"><institution>Instituto de Astrofísica de Canarias</institution>, 38205 La Laguna, Tenerife,<country>Spain</country>;</nlm:aff></affiliation></author><author><name sortKey="Roxburgh, Ian" sort="Roxburgh, Ian" uniqKey="Roxburgh I" first="Ian" last="Roxburgh">Ian Roxburgh</name><affiliation><nlm:aff id="aff18">Astronomy Unit, School of Physics and Astronomy,<institution>Queen Mary University of London</institution>, London E1 4NS, United Kingdom;</nlm:aff></affiliation></author><author><name sortKey="Salabert, David" sort="Salabert, David" uniqKey="Salabert D" first="David" last="Salabert">David Salabert</name><affiliation><nlm:aff id="aff14">Laboratoire Lagrange, Unité Mixte de Recherche 7293,<institution>Université de Nice Sophia-Antipolis</institution>, Centre National de la Recherche Scientifique, Observatoire de la Côte d’Azur, 06300 Nice,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Samadi, Reza" sort="Samadi, Reza" uniqKey="Samadi R" first="Réza" last="Samadi">Réza Samadi</name><affiliation><nlm:aff id="aff5">Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Sato, Kumiko" sort="Sato, Kumiko" uniqKey="Sato K" first="Kumiko" last="Sato">Kumiko Sato</name><affiliation><nlm:aff id="aff15">Laboratoire Astrophysique, Instrumentation, et Modélisation, Institut de Recherche sur les Lois Fondamentales de l'Univers/Service d'Astrophysique–Commissariat à l’Energie Atomique/Direction des Sciences de la Matière–Centre National de la Recherche Scientifique–<institution>Université Paris Diderot</institution>, 91191 Gif-sur-Yvette Cedex,<country>France</country>;</nlm:aff></affiliation></author><author><name sortKey="Verner, Graham" sort="Verner, Graham" uniqKey="Verner G" first="Graham" last="Verner">Graham Verner</name><affiliation><nlm:aff id="aff11">School of Physics and Astronomy,<institution>University of Birmingham</institution>, Edgbaston, Birmingham B15 2TT,<country>United Kingdom</country>;</nlm:aff></affiliation><affiliation><nlm:aff id="aff18">Astronomy Unit, School of Physics and Astronomy,<institution>Queen Mary University of London</institution>, London E1 4NS, United Kingdom;</nlm:aff></affiliation></author><author><name sortKey="Hanasoge, Shravan" sort="Hanasoge, Shravan" uniqKey="Hanasoge S" first="Shravan" last="Hanasoge">Shravan Hanasoge</name><affiliation><nlm:aff id="aff1"><institution>Max-Planck-Institut für Sonnensystemforschung</institution>, 37191 Katlenburg-Lindau,<country>Germany</country>;</nlm:aff></affiliation><affiliation><nlm:aff wicri:cut="; and" id="aff19">Department of Geosciences,<institution>Princeton University</institution>, Princeton,<addr-line>NJ</addr-line> 08544</nlm:aff></affiliation></author><author><name sortKey="Sreenivasan, Katepalli R" sort="Sreenivasan, Katepalli R" uniqKey="Sreenivasan K" first="Katepalli R." last="Sreenivasan">Katepalli R. Sreenivasan</name><affiliation><nlm:aff id="aff20">Physics Department and Courant Institute of Mathematical Sciences,<institution>New York University</institution>,<addr-line>New York, NY</addr-line> 10012</nlm:aff></affiliation></author></analytic><series><title level="j">Proceedings of the National Academy of Sciences of the United States of America</title><idno type="ISSN">0027-8424</idno><idno type="eISSN">1091-6490</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Rotation is thought to drive cyclic magnetic activity in the Sun and Sun-like stars. Stellar dynamos, however, are poorly understood owing to the scarcity of observations of rotation and magnetic fields in stars. Here, inferences are drawn on the internal rotation of a distant Sun-like star by studying its global modes of oscillation. We report asteroseismic constraints imposed on the rotation rate and the inclination of the spin axis of the Sun-like star HD 52265, a principal target observed by the CoRoT satellite that is known to host a planetary companion. These seismic inferences are remarkably consistent with an independent spectroscopic observation (rotational line broadening) and with the observed rotation period of star spots. Furthermore, asteroseismology constrains the mass of exoplanet HD 52265b. Under the standard assumption that the stellar spin axis and the axis of the planetary orbit coincide, the minimum spectroscopic mass of the planet can be converted into a true mass of <inline-formula><inline-graphic xlink:href="pnas.1303291110i1.jpg" id="gra1"></inline-graphic></inline-formula>, which implies that it is a planet, not a brown dwarf.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Proc Natl Acad Sci U S A</journal-id><journal-id journal-id-type="iso-abbrev">Proc. Natl. Acad. Sci. U.S.A</journal-id><journal-id journal-id-type="hwp">pnas</journal-id><journal-id journal-id-type="pmc">pnas</journal-id><journal-id journal-id-type="publisher-id">PNAS</journal-id><journal-title-group><journal-title>Proceedings of the National Academy of Sciences of the United States of America</journal-title></journal-title-group><issn pub-type="ppub">0027-8424</issn><issn pub-type="epub">1091-6490</issn><publisher><publisher-name>National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">23898183</article-id><article-id pub-id-type="pmc">3746883</article-id><article-id pub-id-type="publisher-id">201303291</article-id><article-id pub-id-type="doi">10.1073/pnas.1303291110</article-id><article-categories><subj-group subj-group-type="heading"><subject>Physical Sciences</subject><subj-group><subject>Astronomy</subject></subj-group></subj-group></article-categories><title-group><article-title>Seismic constraints on rotation of Sun-like star and mass of exoplanet</article-title><alt-title alt-title-type="short">Rotation of Sun-like star and mass of exoplanet</alt-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Gizon</surname><given-names>Laurent</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref><xref ref-type="aff" rid="aff2"><sup>b</sup></xref></contrib><contrib contrib-type="author"><name><surname>Ballot</surname><given-names>Jérome</given-names></name><xref ref-type="aff" rid="aff3"><sup>c</sup></xref><xref ref-type="aff" rid="aff4"><sup>d</sup></xref></contrib><contrib contrib-type="author"><name><surname>Michel</surname><given-names>Eric</given-names></name><xref ref-type="aff" rid="aff5"><sup>e</sup></xref></contrib><contrib contrib-type="author"><name><surname>Stahn</surname><given-names>Thorsten</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref><xref ref-type="aff" rid="aff2"><sup>b</sup></xref></contrib><contrib contrib-type="author"><name><surname>Vauclair</surname><given-names>Gérard</given-names></name><xref ref-type="aff" rid="aff3"><sup>c</sup></xref><xref ref-type="aff" rid="aff4"><sup>d</sup></xref></contrib><contrib contrib-type="author"><name><surname>Bruntt</surname><given-names>Hans</given-names></name><xref ref-type="aff" rid="aff5"><sup>e</sup></xref></contrib><contrib contrib-type="author"><name><surname>Quirion</surname><given-names>Pierre-Olivier</given-names></name><xref ref-type="aff" rid="aff6"><sup>f</sup></xref></contrib><contrib contrib-type="author"><name><surname>Benomar</surname><given-names>Othman</given-names></name><xref ref-type="aff" rid="aff7"><sup>g</sup></xref><xref ref-type="aff" rid="aff8"><sup>h</sup></xref></contrib><contrib contrib-type="author"><name><surname>Vauclair</surname><given-names>Sylvie</given-names></name><xref ref-type="aff" rid="aff3"><sup>c</sup></xref><xref ref-type="aff" rid="aff4"><sup>d</sup></xref></contrib><contrib contrib-type="author"><name><surname>Appourchaux</surname><given-names>Thierry</given-names></name><xref ref-type="aff" rid="aff8"><sup>h</sup></xref></contrib><contrib contrib-type="author"><name><surname>Auvergne</surname><given-names>Michel</given-names></name><xref ref-type="aff" rid="aff5"><sup>e</sup></xref></contrib><contrib contrib-type="author"><name><surname>Baglin</surname><given-names>Annie</given-names></name><xref ref-type="aff" rid="aff5"><sup>e</sup></xref></contrib><contrib contrib-type="author"><name><surname>Barban</surname><given-names>Caroline</given-names></name><xref ref-type="aff" rid="aff5"><sup>e</sup></xref></contrib><contrib contrib-type="author"><name><surname>Baudin</surname><given-names>Fréderic</given-names></name><xref ref-type="aff" rid="aff8"><sup>h</sup></xref></contrib><contrib contrib-type="author"><name><surname>Bazot</surname><given-names>Michaël</given-names></name><xref ref-type="aff" rid="aff9"><sup>i</sup></xref></contrib><contrib contrib-type="author"><name><surname>Campante</surname><given-names>Tiago</given-names></name><xref ref-type="aff" rid="aff9"><sup>i</sup></xref><xref ref-type="aff" rid="aff10"><sup>j</sup></xref><xref ref-type="aff" rid="aff11"><sup>k</sup></xref></contrib><contrib contrib-type="author"><name><surname>Catala</surname><given-names>Claude</given-names></name><xref ref-type="aff" rid="aff5"><sup>e</sup></xref></contrib><contrib contrib-type="author"><name><surname>Chaplin</surname><given-names>William</given-names></name><xref ref-type="aff" rid="aff11"><sup>k</sup></xref></contrib><contrib contrib-type="author"><name><surname>Creevey</surname><given-names>Orlagh</given-names></name><xref ref-type="aff" rid="aff12"><sup>l</sup></xref><xref ref-type="aff" rid="aff13"><sup>m</sup></xref><xref ref-type="aff" rid="aff14"><sup>n</sup></xref></contrib><contrib contrib-type="author"><name><surname>Deheuvels</surname><given-names>Sébastien</given-names></name><xref ref-type="aff" rid="aff3"><sup>c</sup></xref><xref ref-type="aff" rid="aff4"><sup>d</sup></xref></contrib><contrib contrib-type="author"><name><surname>Dolez</surname><given-names>Noël</given-names></name><xref ref-type="aff" rid="aff3"><sup>c</sup></xref><xref ref-type="aff" rid="aff4"><sup>d</sup></xref></contrib><contrib contrib-type="author"><name><surname>Elsworth</surname><given-names>Yvonne</given-names></name><xref ref-type="aff" rid="aff11"><sup>k</sup></xref></contrib><contrib contrib-type="author"><name><surname>García</surname><given-names>Rafael</given-names></name><xref ref-type="aff" rid="aff15"><sup>o</sup></xref></contrib><contrib contrib-type="author"><name><surname>Gaulme</surname><given-names>Patrick</given-names></name><xref ref-type="aff" rid="aff16"><sup>p</sup></xref></contrib><contrib contrib-type="author"><name><surname>Mathis</surname><given-names>Stéphane</given-names></name><xref ref-type="aff" rid="aff15"><sup>o</sup></xref></contrib><contrib contrib-type="author"><name><surname>Mathur</surname><given-names>Savita</given-names></name><xref ref-type="aff" rid="aff17"><sup>q</sup></xref></contrib><contrib contrib-type="author"><name><surname>Mosser</surname><given-names>Benoît</given-names></name><xref ref-type="aff" rid="aff5"><sup>e</sup></xref></contrib><contrib contrib-type="author"><name><surname>Régulo</surname><given-names>Clara</given-names></name><xref ref-type="aff" rid="aff12"><sup>l</sup></xref><xref ref-type="aff" rid="aff13"><sup>m</sup></xref></contrib><contrib contrib-type="author"><name><surname>Roxburgh</surname><given-names>Ian</given-names></name><xref ref-type="aff" rid="aff18"><sup>r</sup></xref></contrib><contrib contrib-type="author"><name><surname>Salabert</surname><given-names>David</given-names></name><xref ref-type="aff" rid="aff14"><sup>n</sup></xref></contrib><contrib contrib-type="author"><name><surname>Samadi</surname><given-names>Réza</given-names></name><xref ref-type="aff" rid="aff5"><sup>e</sup></xref></contrib><contrib contrib-type="author"><name><surname>Sato</surname><given-names>Kumiko</given-names></name><xref ref-type="aff" rid="aff15"><sup>o</sup></xref></contrib><contrib contrib-type="author"><name><surname>Verner</surname><given-names>Graham</given-names></name><xref ref-type="aff" rid="aff11"><sup>k</sup></xref><xref ref-type="aff" rid="aff18"><sup>r</sup></xref></contrib><contrib contrib-type="author"><name><surname>Hanasoge</surname><given-names>Shravan</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref><xref ref-type="aff" rid="aff19"><sup>s</sup></xref></contrib><contrib contrib-type="author"><name><surname>Sreenivasan</surname><given-names>Katepalli R.</given-names></name><xref ref-type="aff" rid="aff20"><sup>t</sup></xref><xref ref-type="corresp" rid="cor1"><sup>1</sup></xref></contrib><aff id="aff1"><sup>a</sup><institution>Max-Planck-Institut für Sonnensystemforschung</institution>, 37191 Katlenburg-Lindau,<country>Germany</country>;</aff><aff id="aff2"><sup>b</sup>Institut für Astrophysik,<institution>Georg-August-Universität Göttingen</institution>, 37077 Göttingen,<country>Germany</country>;</aff><aff id="aff3"><sup>c</sup>Institut de Recherche en Astrophysique et Planétologie,<institution>Centre National de la Recherche Scientifique</institution>, 31400 Toulouse,<country>France</country>;</aff><aff id="aff4"><sup>d</sup><institution>Université de Toulouse</institution>, Université Paul Sabatier/Observatoire Midi-Pyrénées, 31400 Toulouse,<country>France</country>;</aff><aff id="aff5"><sup>e</sup>Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8109, Université Pierre et Marie Curie,<institution>Université Denis Diderot</institution>, 92195 Meudon,<country>France</country>;</aff><aff id="aff6"><sup>f</sup><institution>Agence Spatiale Canadienne</institution>, Saint-Hubert, Québec,<country>Canada</country> J3Y 8Y9;</aff><aff id="aff7"><sup>g</sup>Sydney Institute for Astronomy, School of Physics,<institution>University of Sydney</institution>, Sydney, NSW 2006,<country>Australia</country>;</aff><aff id="aff8"><sup>h</sup>Institut d’Astrophysique Spatiale,<institution>Université Paris Sud</institution>–Centre National de la Recherche Scientifique (Unité Mixte de Recherche 8617), 91405 Orsay Cedex,<country>France</country>;</aff><aff id="aff9"><sup>i</sup><institution>Centro de Astrofísica da Universidade do Porto</institution>, 4150-762 Porto,<country>Portugal</country>;</aff><aff id="aff10"><sup>j</sup>Danish AsteroSeismology Centre, Department of Physics and Astronomy,<institution>University of Aarhus</institution>, 8000 Aarhus C,<country>Denmark</country>;</aff><aff id="aff11"><sup>k</sup>School of Physics and Astronomy,<institution>University of Birmingham</institution>, Edgbaston, Birmingham B15 2TT,<country>United Kingdom</country>;</aff><aff id="aff12"><sup>l</sup>Departamento de Astrofísica,<institution>Universidad de La Laguna</institution>, 38206 La Laguna, Tenerife,<country>Spain</country>;</aff><aff id="aff13"><sup>m</sup><institution>Instituto de Astrofísica de Canarias</institution>, 38205 La Laguna, Tenerife,<country>Spain</country>;</aff><aff id="aff14"><sup>n</sup>Laboratoire Lagrange, Unité Mixte de Recherche 7293,<institution>Université de Nice Sophia-Antipolis</institution>, Centre National de la Recherche Scientifique, Observatoire de la Côte d’Azur, 06300 Nice,<country>France</country>;</aff><aff id="aff15"><sup>o</sup>Laboratoire Astrophysique, Instrumentation, et Modélisation, Institut de Recherche sur les Lois Fondamentales de l'Univers/Service d'Astrophysique–Commissariat à l’Energie Atomique/Direction des Sciences de la Matière–Centre National de la Recherche Scientifique–<institution>Université Paris Diderot</institution>, 91191 Gif-sur-Yvette Cedex,<country>France</country>;</aff><aff id="aff16"><sup>p</sup>Department of Astronomy,<institution>New Mexico State University</institution>, Las Cruces,<addr-line>NM</addr-line> 88003-8001;</aff><aff id="aff17"><sup>q</sup>High Altitude Observatory,<institution>National Center for Atmospheric Research</institution>, Boulder,<addr-line>CO</addr-line> 80307;</aff><aff id="aff18"><sup>r</sup>Astronomy Unit, School of Physics and Astronomy,<institution>Queen Mary University of London</institution>, London E1 4NS, United Kingdom;</aff><aff id="aff19"><sup>s</sup>Department of Geosciences,<institution>Princeton University</institution>, Princeton,<addr-line>NJ</addr-line> 08544; and</aff><aff id="aff20"><sup>t</sup>Physics Department and Courant Institute of Mathematical Sciences,<institution>New York University</institution>,<addr-line>New York, NY</addr-line> 10012</aff></contrib-group><author-notes><corresp id="cor1"><sup>1</sup>To whom correspondence should be addressed. E-mail: <email>krs3@nyu.edu</email>.</corresp><fn fn-type="edited-by"><p>Contributed by Katepalli R. Sreenivasan, February 27, 2013 (sent for review September 26, 2012)</p></fn><fn fn-type="con"><p>Author contributions: L.G. and T.S. designed research; L.G., J.B., E.M., T.S., G. Vauclair, H.B., P.-O.Q., O.B., S.V., T.A., M.A., A.B., C.B., F.B., M.B., T.C., C.C., W.C., O.C., S.D., N.D., Y.E., R.G., P.G., S. Mathis, S. Mathur, B.M., C.R., I.R., D.S., R.S., K.S., and G. Verner performed research; and L.G., J.B., E.M., T.S., S.H., and K.R.S. wrote the paper.</p></fn></author-notes><pub-date pub-type="ppub"><day>13</day><month>8</month><year>2013</year></pub-date><pub-date pub-type="epub"><day>29</day><month>7</month><year>2013</year></pub-date><volume>110</volume><issue>33</issue><fpage>13267</fpage><lpage>13271</lpage><self-uri xlink:title="pdf" xlink:type="simple" xlink:href="pnas.201303291.pdf"></self-uri><abstract><p>Rotation is thought to drive cyclic magnetic activity in the Sun and Sun-like stars. Stellar dynamos, however, are poorly understood owing to the scarcity of observations of rotation and magnetic fields in stars. Here, inferences are drawn on the internal rotation of a distant Sun-like star by studying its global modes of oscillation. We report asteroseismic constraints imposed on the rotation rate and the inclination of the spin axis of the Sun-like star HD 52265, a principal target observed by the CoRoT satellite that is known to host a planetary companion. These seismic inferences are remarkably consistent with an independent spectroscopic observation (rotational line broadening) and with the observed rotation period of star spots. Furthermore, asteroseismology constrains the mass of exoplanet HD 52265b. Under the standard assumption that the stellar spin axis and the axis of the planetary orbit coincide, the minimum spectroscopic mass of the planet can be converted into a true mass of <inline-formula><inline-graphic xlink:href="pnas.1303291110i1.jpg" id="gra1"></inline-graphic></inline-formula>, which implies that it is a planet, not a brown dwarf.</p></abstract><kwd-group><kwd>extrasolar planets</kwd><kwd>stellar oscillations</kwd><kwd>stellar rotation</kwd></kwd-group><counts><page-count count="5"></page-count></counts></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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