Hostname: page-component-848d4c4894-jbqgn Total loading time: 0 Render date: 2024-06-27T06:24:06.488Z Has data issue: false hasContentIssue false
  • English
  • Français

Rotation and magnetism of solar-like stars: from scaling laws to spot-dynamos

Published online by Cambridge University Press:  07 August 2014

Allan Sacha Brun
Allan Sacha Brun*
Affiliation:
AIM-IRFU/SAp, CEA/CNRS/University of Paris 7, CEA-Saclay, 91191 Gif-sur-Yvette, France email: sacha.brun@cea.fr
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.

The Sun is the archetype of magnetic star and its proximity coupled with very high accuracy observations has helped us understanding how solar-like stars (e.g with a convective envelope) redistribute angular momentum and generate a cyclic magnetic field. However most solar models have been so fine tuned that when they are applied to other solar-like stars the agreement with observations is not good enough. I will thus discuss, based on theoretical considerations and multi-D MHD stellar models, what can be considered as robust properties of solar-like star dynamics and magnetism and what is still speculative. I will derive scaling laws for differential rotation and magnetic energy as a function of stellar parameters, discuss recent results of stellar dynamo models and define the new concept of spot-dynamo, e.g. global dynamo that develops self-consistent magnetic buoyant structures that emerge at the surface.

Keywords

Sun: convectionrotationmagnetismdynamostellar magnetism and rotation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S302: Magnetic Fields throughout Stellar Evolution , August 2013 , pp. 114 - 125
Copyright
Copyright © International Astronomical Union 2014 

References

Augustson, K. C., Brown, B. P., Brun, A. S., Miesch, M. S., & Toomre, J. 2012, ApJ, 756, 169Google Scholar
Augustson, K. C., Brun, A. S., & Toomre, J. 2013, ApJ, 777, 153CrossRefGoogle Scholar
Babcock, H. W. 1961, ApJ, 133, 572CrossRefGoogle Scholar
Baliunas, S. L., Donahue, R. A., Soon, W. H., et al. 1995, ApJ, 438, 269Google Scholar
Baliunas, S. L., Nesme-Ribes, E., Sokoloff, D., & Soon, W. H. 1996, ApJ, 460, 848Google Scholar
Ballot, J., Brun, A. S. & Turck-Chièze, S. 2007, ApJ, 669, 1190Google Scholar
Barnes, J. R., Collier Cameron, A., Donati, J.-F., et al. 2005, MNRAS, 357, L1Google Scholar
Böhm-Vitense, E. 2007, ApJ, 657, 486CrossRefGoogle Scholar
Brown, B. P., Browning, M. K., Brun, A. S., Miesch, M. S., & Toomre, J. 2008, ApJ, 689, 1354CrossRefGoogle Scholar
Brown, B. P., Browning, M. K., Brun, A. S., Miesch, M. S., & Toomre, J. 2010, ApJ, 711, 424Google Scholar
Brown, B. P., Miesch, M. S., Browning, M. K., Brun, A. S., & Toomre, J. 2011, ApJ, 731, 69CrossRefGoogle Scholar
Browning, M. K., Miesch, M. S., Brun, A. S., & Toomre, J. 2006, ApJ, 648, L157CrossRefGoogle Scholar
Brun, A. S. 2004, Solar Phys., 220, 333Google Scholar
Brun, A. S. & Toomre, J. 2002, ApJ, 570, 865Google Scholar
Brun, A. S., Miesch, M. S., & Toomre, J. 2004, ApJ, 614, 1073Google Scholar
Brun, A. S., Browning, M. K., & Toomre, J. 2005, ApJ, 629, 461Google Scholar
Brun, A. S. & Rempel, M. 2009, Space Sci. Rev., 144, 151CrossRefGoogle Scholar
Brun, A. S., Miesch, M. S., & Toomre, J. 2011, ApJ, 742, 79Google Scholar
Charbonneau, P. & Saar, S. H. 2001, Magnetic Fields Across the H-R Diagram, 248, 189Google Scholar
Charbonneau, P. 2010, Living Reviews in Solar Physics, 7, 3Google Scholar
Christensen, U. R. 2010, Space Sci. Rev., 152, 565CrossRefGoogle Scholar
D'Silva, S. & Choudhuri, A. R. 1993, A&A, 272, 621Google Scholar
DeRosa, M. L., Brun, A. S., & Hoeksema, J. T. 2012, ApJ, 757, 96CrossRefGoogle Scholar
Dikpati, M., Saar, S. H., Brummell, N., & Charbonneau, P. 2001, Magnetic Fields Across the H-R Diagram, 248, 235Google Scholar
Dikpati, M., de Toma, G., Gilman, P. A., Arge, C. N., & White, O. R. 2004, ApJ, 601, 1136CrossRefGoogle Scholar
Do Cao, O. & Brun, A. S. 2011, Astron. Nach., 332, 907CrossRefGoogle Scholar
Donahue, R. A., Saar, S. H., & Baliunas, S. L. 1996, ApJ, 466, 384CrossRefGoogle Scholar
Donati, J.-F., Semel, M., Carter, B., Rees, D. & Collier Cameron, A. 1997, MNRAS, 291, 658Google Scholar
Dubé, C. & Charbonneau, P. 2013, ApJ, 775, 69CrossRefGoogle Scholar
Durney, B. R. & Latour, J. 1978, Geophysical and Astrophysical Fluid Dynamics, 9, 241Google Scholar
Fauve, S. & Pétrélis, F. 2007, Comptes Rendus Physique, 8, 87Google Scholar
García, R. A., Mathur, S., Salabert, D., et al. 2010, Science, 329, 1032Google Scholar
Gastine, T., Duarte, L., & Wicht, J. 2012, A&A, 546, A19Google Scholar
Gastine, T., Yadav, R., Morin, Jet al. 2013, MNRAS, in pressGoogle Scholar
Giampapa, M. S. 2005, Saas-Fee Adv. Course 34: The Sun, Solar Analogs and the Climate, 307Google Scholar
Giampapa, M. S., Hall, J. C., Radick, R. R., & Baliunas, S. L. 2006, ApJ, 651, 444Google Scholar
Gondoin, P. 2012, A&A, 546, A117Google Scholar
Guerrero, G. & de Gouveia Dal Pino, E. M. 2008, A&A, 485, 267Google Scholar
Hazra, G., Karak, B. B., & Choudhuri, A. R. 2013, arXiv:1309.2838Google Scholar
Jouve, L. & Brun, A. S. 2007, A&A, 474, 239Google Scholar
Jouve, L., Brown, B. P., & Brun, A. S. 2010, A&A, 509, A32Google Scholar
Jouve, L., Brun, A. S., & Aulanier, G. 2013, ApJ, 762, 4Google Scholar
Käpylä, P. J., Korpi, M. J., Ossendrijver, M., & Stix, M. 2006, A&A, 455, 401Google Scholar
Käpylä, P. J., Mantere, M. J., Guerrero, G., Brandenburg, A., & Chatterjee, P. 2011, A&A, 531, A162Google Scholar
Käpylä, P. J., Mantere, M. J., Cole, E., Warnecke, J., & Brandenburg, A. 2013, ApJ, 778, 41CrossRefGoogle Scholar
Küker, M., Rüdiger, G., & Kitchatinov, L. L. 2011, A&A, 530, A48Google Scholar
Leighton, R. B. 1969, ApJ, 156, 1Google Scholar
Mathur, S., García, R. A., Morgenthaler, A., et al. 2013, A&A, 550, A32Google Scholar
Matt, S. P., Do Cao, O., Brown, B. P., & Brun, A. S. 2011, Astron. Nach., 332, 897Google Scholar
Matt, S. P. & Brun, A. S. 2013, ApJ submittedGoogle Scholar
Miesch, M. S., Brun, A. S., & Toomre, J. 2006, ApJ, 641, 618Google Scholar
Miesch, M. S., Brun, A. S., De Rosa, M. L., & Toomre, J. 2008, ApJ, 673, 557Google Scholar
Moffatt, H. K. 1978, Cambridge, England, Cambridge University Press, 1978. 353 p.Google Scholar
Montesinos, B., Thomas, J. H., Ventura, P., & Mazzitelli, I. 2001, MNRAS, 326, 877Google Scholar
Morgenthaler, A., Petit, P., Morin, J., et al. 2011, Astronomische Nachrichten, 332, 866Google Scholar
Nandy, D. 2004, Solar Phys., 224, 161Google Scholar
Nandy, D. & Martens, P. C. H. 2007, Advances in Space Research, 40, 891Google Scholar
Nelson, N. J., Brown, B. P., Brun, A. S., Miesch, M. S., & Toomre, J. 2011, ApJ, 739, L38CrossRefGoogle Scholar
Nelson, N. J., Brown, B. P., Brun, A. S., Miesch, M. S., & Toomre, J. 2013, ApJ, 762, 73Google Scholar
Noyes, R. W., Weiss, N. O., & Vaughan, A. H. 1984, ApJ, 287, 769Google Scholar
Petit, P., Dintrans, B., Solanki, S. K., et al. 2008, MNRAS, 388, 80Google Scholar
Pizzolato, N., Maggio, A., Micela, G., Sciortino, S., & Ventura, P. 2003, A&A, 397, 147Google Scholar
Pouquet, A., Frisch, U., & Leorat, J. 1976, Journal of Fluid Mechanics, 77, 321CrossRefGoogle Scholar
Racine, É., Charbonneau, P., Ghizaru, M., Bouchat, A., & Smolarkiewicz, P. 2011, ApJ, 735, 46Google Scholar
Reiners, A. 2012, Living Reviews in Solar Physics, 9, 1CrossRefGoogle Scholar
Saar, S. 2002, Stellar Coronae in the Chandra and XMM-NEWTON Era, 277, 311Google Scholar
Saar, S. H. & Brandenburg, A. 1999, ApJ, 524, 295Google Scholar
Strugarek, A., Brun, A. S., Mathis, S., & Sarazin, Y. 2013, ApJ, 764, 189Google Scholar
Tobias, S. M. 1997, A&A, 322, 1007Google Scholar
Tobias, S. M., Brummell, N. H., Clune, T. L., & Toomre, J. 2001, ApJ, 549, 1183Google Scholar
Weiss, N. O. 1994, Lectures on Solar and Planetary Dynamos, 59CrossRefGoogle Scholar
Wilson, O. C. 1978, ApJ, 226, 379Google Scholar
Wright, N. J., Drake, J. J., Mamajek, E. E., & Henry, G. W. 2011, ApJ, 743, 48Google Scholar
Zhao, J., Bogart, R., Kosovichev, A., Duvall, T. Jr., & Hartlep, T. 2013, ApJ, 774, L29Google Scholar