Impact of Stellar Magnetism on Star-planet Tidal Interactions
International audience Over the last two decades, about 4000 exoplanets have been discovered around low-mass stars. For the shortest period exoplanets, star-planet tidal interactions are likely to have played a major role in the ultimate orbital evolution and on the spin axis evolution of the host s...
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HAL CCSD
2019
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Online Access: | https://hal.archives-ouvertes.fr/hal-02370766 |
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[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] |
spellingShingle |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] Astoul, Aurélie Mathis, Stéphane Baruteau, Clément Gallet, Florian Strugarek, Antoine Augustson, Kyle Brun, Allan Sacha Bolmont, Emeline Impact of Stellar Magnetism on Star-planet Tidal Interactions |
topic_facet |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] |
description |
International audience Over the last two decades, about 4000 exoplanets have been discovered around low-mass stars. For the shortest period exoplanets, star-planet tidal interactions are likely to have played a major role in the ultimate orbital evolution and on the spin axis evolution of the host stars. Although low-mass stars are magnetically active objects, the question of how the star's magnetic field impacts the excitation, propagation and dissipation of tidal waves remains open. In this work, we have derived the magnetic contribution to the tidal force and estimated its amplitude all along the structural and rotational evolutions of low-mass stars (from M to F-type). For this purpose, we have used detailed grids of rotating stellar models computed with the stellar evolution code STAREVOL. The amplitude of dynamo-generated magnetic fields is estimated via physical scaling laws at the base and the top of the convective envelope. We find that the star's magnetic field has little influence on the excitation of tidal waves in near circular and coplanar Hot-Jupiter systems, but that it has a major impact on the waves dissipation. Our results therefore indicate that a full MHD treatment of the propagation and dissipation of tidal waves is needed to assess the impact of star-planet tidal interactions for all low-mass stars along their evolution. |
author2 |
Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7) Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) SSE 2014 Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire d'Astrophysique de Bordeaux Pessac (LAB) Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB) |
format |
Conference Object |
author |
Astoul, Aurélie Mathis, Stéphane Baruteau, Clément Gallet, Florian Strugarek, Antoine Augustson, Kyle Brun, Allan Sacha Bolmont, Emeline |
author_facet |
Astoul, Aurélie Mathis, Stéphane Baruteau, Clément Gallet, Florian Strugarek, Antoine Augustson, Kyle Brun, Allan Sacha Bolmont, Emeline |
author_sort |
Astoul, Aurélie |
title |
Impact of Stellar Magnetism on Star-planet Tidal Interactions |
title_short |
Impact of Stellar Magnetism on Star-planet Tidal Interactions |
title_full |
Impact of Stellar Magnetism on Star-planet Tidal Interactions |
title_fullStr |
Impact of Stellar Magnetism on Star-planet Tidal Interactions |
title_full_unstemmed |
Impact of Stellar Magnetism on Star-planet Tidal Interactions |
title_sort |
impact of stellar magnetism on star-planet tidal interactions |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-02370766 |
op_coverage |
Reykjavik, Iceland |
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ENVELOPE(101.133,101.133,-66.117,-66.117) |
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Jupiter |
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Jupiter |
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Iceland |
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Iceland |
op_source |
Extreme Solar Systems 4 https://hal.archives-ouvertes.fr/hal-02370766 Extreme Solar Systems 4, Aug 2019, Reykjavik, Iceland |
op_relation |
hal-02370766 https://hal.archives-ouvertes.fr/hal-02370766 BIBCODE: 2019ESS.431908A |
_version_ |
1766041215484035072 |
spelling |
ftccsdartic:oai:HAL:hal-02370766v1 2023-05-15T16:51:06+02:00 Impact of Stellar Magnetism on Star-planet Tidal Interactions Astoul, Aurélie Mathis, Stéphane Baruteau, Clément Gallet, Florian Strugarek, Antoine Augustson, Kyle Brun, Allan Sacha Bolmont, Emeline Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7) Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) SSE 2014 Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire d'Astrophysique de Bordeaux Pessac (LAB) Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB) Reykjavik, Iceland 2019-08 https://hal.archives-ouvertes.fr/hal-02370766 en eng HAL CCSD hal-02370766 https://hal.archives-ouvertes.fr/hal-02370766 BIBCODE: 2019ESS.431908A Extreme Solar Systems 4 https://hal.archives-ouvertes.fr/hal-02370766 Extreme Solar Systems 4, Aug 2019, Reykjavik, Iceland [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] info:eu-repo/semantics/conferenceObject Poster communications 2019 ftccsdartic 2021-12-25T23:44:28Z International audience Over the last two decades, about 4000 exoplanets have been discovered around low-mass stars. For the shortest period exoplanets, star-planet tidal interactions are likely to have played a major role in the ultimate orbital evolution and on the spin axis evolution of the host stars. Although low-mass stars are magnetically active objects, the question of how the star's magnetic field impacts the excitation, propagation and dissipation of tidal waves remains open. In this work, we have derived the magnetic contribution to the tidal force and estimated its amplitude all along the structural and rotational evolutions of low-mass stars (from M to F-type). For this purpose, we have used detailed grids of rotating stellar models computed with the stellar evolution code STAREVOL. The amplitude of dynamo-generated magnetic fields is estimated via physical scaling laws at the base and the top of the convective envelope. We find that the star's magnetic field has little influence on the excitation of tidal waves in near circular and coplanar Hot-Jupiter systems, but that it has a major impact on the waves dissipation. Our results therefore indicate that a full MHD treatment of the propagation and dissipation of tidal waves is needed to assess the impact of star-planet tidal interactions for all low-mass stars along their evolution. Conference Object Iceland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Jupiter ENVELOPE(101.133,101.133,-66.117,-66.117) |