Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-26T20:54:14.937Z Has data issue: false hasContentIssue false
  • English
  • Français

The impact of magnetism on tidal dynamics in the convective envelope of low-mass stars

Published online by Cambridge University Press:  24 September 2020

A. Astoul Open the ORCID record for A. Astoul [Opens in a new window] ,
S. Mathis ,
C. Baruteau ,
F. Gallet ,
A. Strugarek Open the ORCID record for A. Strugarek [Opens in a new window] ,
K. C. Augustson Open the ORCID record for K. C. Augustson [Opens in a new window] ,
A. S. Brun Open the ORCID record for A. S. Brun [Opens in a new window]  and
E. Bolmont
A. Astoul
Affiliation:
AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France email: [email protected]
S. Mathis
Affiliation:
AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France email: [email protected]
C. Baruteau
Affiliation:
IRAP, Observatoire Midi-Pyrénées, Université de Toulouse, 14 avenue Edouard Belin, 31400 Toulouse, France
F. Gallet
Affiliation:
Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
A. Strugarek
Affiliation:
AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France email: [email protected]
K. C. Augustson
Affiliation:
AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France email: [email protected]
A. S. Brun
Affiliation:
AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France email: [email protected]
E. Bolmont
Affiliation:
Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, CH-1290 Sauverny, Switzerland
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

For the shortest period exoplanets, star-planet tidal interactions are likely to have played a major role in the ultimate orbital evolution of the planets and on the spin 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. We have derived the magnetic contribution to the tidal interaction and estimated its amplitude throughout the structural and rotational evolution of low-mass stars (from K to F-type). We find that the star’s magnetic field has little influence on the excitation of tidal waves in nearly circular and coplanar Hot-Jupiter systems, but that it has a major impact on the way waves are dissipated.

Keywords

MHDwavesstars: evolutionstars: rotationstars: magnetic fieldsplanetary systems
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S354: Solar and Stellar Magnetic Fields: Origins and Manifestations , June 2019 , pp. 195 - 199
Copyright
© International Astronomical Union 2020

References

Amard, L., Palacios, A., Charbonnel, C., Gallet, F., Georgy, C., Lagarde, N., Siess, L., et al. 2019, A&A, 631, A77 Google Scholar
Astoul, A., Mathis, S., Baruteau, C., Gallet, F., Strugarek, A., Augustson, K.C., Brun, A. S., Bolmont, E., et al. 2019, A&A (in press), https://doi.org/10.1051/0004-6361/201936477 CrossRefGoogle Scholar
Augustson, K. C., Brun, A. S., Toomre, J., et al. 2019 ApJ, 876, 83CrossRefGoogle Scholar
Bolmont, E., Gallet, F., Mathis, S., Charbonnel, C., Amard, L., et al. 2019, EAS Publications Series, 82, 71 CrossRefGoogle Scholar
Bolmont, E., Gallet, F., Mathis, S., Charbonnel, C., Amard, L., Alibert, Y., et al. 2017, A&A, 604, A113 Google Scholar
Brun, A. S. & Browning, M. K. 2017, Living Reviews in Solar Physics, 14, 4 CrossRefGoogle Scholar
Brun, A. S., Garcia, R. A., Houdek, G., Nandy, D., Pinsonnneault, M., et al. 2015, Space Sci. Rev., 196, 303 CrossRefGoogle Scholar
Gallet, F., Bolmont, E., Mathis, S., Charbonnel, C., Amard, L., et al. 2017, A&A, 604, A112 Google Scholar
Lehnert, B. 1954, ApJ, 119, 647 CrossRefGoogle Scholar
Lin, Y. & Ogilvie, G. I. 2018, MNRAS, 474, 1644 CrossRefGoogle Scholar
Mathis, S. 2015, A&A, 580, L3 Google Scholar
Ogilvie, G. 2014, ARA&A, 52, 171 CrossRefGoogle Scholar
Perryman, M. 2018, The Exoplanet Handbook CrossRefGoogle Scholar
See, V., Matt, S. P., Finley, A. J., Folsom, C. P., Boro Saikia, S., Donati, J. F., Fares, R., Hébrard, É. M., Jardine, M. M., Jeffers, S. V., Marsden, S. C., Mengel, M. W., Morin, J., Petit, P., Vidotto, A. A., Waite, I. A., & The BCool Collaboration 2019, ApJ (in press), https://arXiv.org/abs/1910.02129 Google Scholar
Wei, X. 2016, ApJ, 828, 30 CrossRefGoogle Scholar
Wei, X. 2018, ApJ, 854, 34 CrossRefGoogle Scholar
Zahn, J. P. 1977, A&A, 500, 121 Google Scholar