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Spin-down and reduced mass loss in early-type stars with large-scale magnetic fields

Published online by Cambridge University Press:  16 August 2023

Z. Keszthelyi Open the ORCID record for Z. Keszthelyi [Opens in a new window] ,
A. de Koter ,
Y. Götberg ,
G. Meynet ,
S.A. Brands Open the ORCID record for S.A. Brands [Opens in a new window] ,
V. Petit ,
M. Carrington ,
A. David-Uraz ,
S.T. Geen  and
C. Georgy
...Show all authors
Z. Keszthelyi
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands Center for Computational Astrophysics, Division of Science, National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
A. de Koter
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
Y. Götberg
Affiliation:
The observatories of the Carnegie institution for science, 813 Santa Barbara Street, Pasadena, CA 91101, USA
G. Meynet
Affiliation:
Geneva Observatory, University of Geneva, Maillettes 51, 1290 Sauverny, Switzerland
S.A. Brands
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
V. Petit
Affiliation:
Dept. of Physics and Astronomy, Bartol Research Institute, University of Delaware, 217 Sharp Lab, Newark, DE 19716, USA
M. Carrington
Affiliation:
Dept. of Physics and Space Science, Royal Military College of Canada, PO Box 1700, Station Forces, Kingston, ON K7K 0C6, Canada
A. David-Uraz
Affiliation:
Dept. of Physics and Astronomy, Howard University, Washington, DC 20059, USA Center for Research and Exploration in Space Science and Technology, and X-ray Astrophysics Laboratory, NASA/GSFC, Greenbelt, MD 20771, USA
S.T. Geen
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
C. Georgy
Affiliation:
Geneva Observatory, University of Geneva, Maillettes 51, 1290 Sauverny, Switzerland
R. Hirschi
Affiliation:
Astrophysics Group, Keele University, Keele, Staffordshire ST5 5BG, UK Institute for Physics and Mathematics of the Universe (WPI), University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8583, Japan
J. Puls
Affiliation:
LMU München, Universitätssternwarte, Scheinerstr. 1, 81679 München, Germany
K.J. Ramalatswa
Affiliation:
Dept. of Astronomy, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa South African Astronomical Observatory, PO Box 9, Observatory, 7935, South Africa
M.E. Shultz
Affiliation:
Dept. of Physics and Astronomy, Bartol Research Institute, University of Delaware, 217 Sharp Lab, Newark, DE 19716, USA
A. ud-Doula
Affiliation:
Dept. of Physics, Penn State Scranton, 120 Ridge View Drive, Dunmore, PA 18512, USA
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Abstract

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Magnetism can greatly impact the evolution of stars. In some stars with OBA spectral types there is direct evidence via the Zeeman effect for stable, large-scale magnetospheres, which lead to the spin-down of the stellar surface and reduced mass loss. So far, a comprehensive grid of stellar structure and evolution models accounting for these effects was lacking. For this reason, we computed and studied models with two magnetic braking and two chemical mixing schemes in three metallicity environments with the mesa software instrument. We find notable differences between the subgrids, which affects the model predictions and thus the detailed characterisation of stars. We are able to quantify the impact of magnetic fields in terms of preventing quasi-chemically homogeneous evolution and producing slowly-rotating, nitrogen-enriched (“Group 2”) stars. Our model grid is fully open access and open source.

Keywords

stars: evolutionstars: massivestars: magnetic fieldstars: rotationstars: abundances
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 17 , Symposium S370: Winds of Stars and Exoplanets , August 2021 , pp. 257 - 262
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

References

Aerts, C., Molenberghs, G., Kenward, M. G., Neiner, C., 2014, ApJ 781, 88 CrossRefGoogle Scholar
Björklund, R., Sundqvist, J. O., Puls, J., Najarro, F., 2020, A&A 648, A36 Google Scholar
Commerçon, B., Hennebelle, P., Henning, T., 2011, ApJL 742, L9 CrossRefGoogle Scholar
Hunter, I., Brott, I., Lennon, D. J., Langer, N., Dufton, P. L., et al., 2008, ApJL 676, L29 CrossRefGoogle Scholar
Keszthelyi, Z., Meynet, G., Georgy, C., Wade, G. A., Petit, V., David-Uraz, A., 2019, MNRAS 485, 5843 CrossRefGoogle Scholar
Keszthelyi, Z., Meynet, G., Shultz, M. E., David-Uraz, A., ud-Doula, A., et al., 2020, MNRAS 493, 518 CrossRefGoogle Scholar
Keszthelyi, Z., Meynet, G., Martins, F., de Koter, A., David-Uraz, A., 2021, MNRAS 504, 2474 CrossRefGoogle Scholar
Keszthelyi et al. 2022, MNRAS, 517, 2028 CrossRefGoogle Scholar
Krtička, J., Kubát, J., Krtičková, I., 2021, A&A 647, A28 Google Scholar
Martins, F., Hervé, A., Bouret, J.-C., Marcolino, W., Wade, G. A., et al., 2015, A&A 575, A34 Google Scholar
Martins, F., Escolano, C., Wade, G. A., Donati, J. F., Bouret, 2012, A&A 538, A29 Google Scholar
Paxton, B., Smolec, R., Schwab, J., Gautschy, A., Bildsten, L., et al., 2019, ApJS 243, 10 CrossRefGoogle Scholar
Pinsonneault, M. H., Kawaler, S. D., Sofia, S., Demarque, P., 1989, ApJ 338, 424 CrossRefGoogle Scholar
Schneider, F. R. N., Ohlmann, S. T., Podsiadlowski, P., 2019, Nat 574, 211 CrossRefGoogle Scholar
ud-Doula, A., Owocki, S. P., Townsend, R. H. D., 2008, MNRAS 385, 97CrossRefGoogle Scholar
ud-Doula, A., Owocki, S. P., Townsend, R. H. D., 2009, MNRAS 392, 1022CrossRefGoogle Scholar
Takiwaki, T., Kotake, K, 2011, ApJ 743, 30 CrossRefGoogle Scholar
Vink, J. S., de Koter, A., Lamers, H. J. G. L. M., 2001, A&A 369, 574 Google Scholar
Weber, E. J., Davis, L. Jr., 1967, ApJ 148, 217 CrossRefGoogle Scholar
Yoon, S. -C., Langer, N., Norman, C., 2006, ApJ 460, 199 Google Scholar
Zahn, J.-P., 1992, A&A 265, 115 Google Scholar