---
_id: '14098'
abstract:
- lang: eng
text: Magnetic fields can drastically change predictions of evolutionary models
of massive stars via mass-loss quenching, magnetic braking, and efficient angular
momentum transport, which we aim to quantify in this work. We use the MESA software
instrument to compute an extensive main-sequence grid of stellar structure and
evolution models, as well as isochrones, accounting for the effects attributed
to a surface fossil magnetic field. The grid is densely populated in initial mass
(3–60 M⊙), surface equatorial magnetic field strength (0–50 kG), and metallicity
(representative of the Solar neighbourhood and the Magellanic Clouds). We use
two magnetic braking and two chemical mixing schemes and compare the model predictions
for slowly rotating, nitrogen-enriched (‘Group 2’) stars with observations in
the Large Magellanic Cloud. We quantify a range of initial field strengths that
allow for producing Group 2 stars and find that typical values (up to a few kG)
lead to solutions. Between the subgrids, we find notable departures in surface
abundances and evolutionary paths. In our magnetic models, chemical mixing is
always less efficient compared to non-magnetic models due to the rapid spin-down.
We identify that quasi-chemically homogeneous main sequence evolution by efficient
mixing could be prevented by fossil magnetic fields. We recommend comparing this
grid of evolutionary models with spectropolarimetric and spectroscopic observations
with the goals of (i) revisiting the derived stellar parameters of known magnetic
stars, and (ii) observationally constraining the uncertain magnetic braking and
chemical mixing schemes.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Z.
full_name: Keszthelyi, Z.
last_name: Keszthelyi
- first_name: A. de
full_name: Koter, A. de
last_name: Koter
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: G.
full_name: Meynet, G.
last_name: Meynet
- first_name: S. A.
full_name: Brands, S. A.
last_name: Brands
- first_name: V.
full_name: Petit, V.
last_name: Petit
- first_name: M.
full_name: Carrington, M.
last_name: Carrington
- first_name: A. David-Uraz
full_name: A. David-Uraz, A. David-Uraz
last_name: A. David-Uraz
- first_name: S. T.
full_name: Geen, S. T.
last_name: Geen
- first_name: C.
full_name: Georgy, C.
last_name: Georgy
- first_name: R.
full_name: Hirschi, R.
last_name: Hirschi
- first_name: J.
full_name: Puls, J.
last_name: Puls
- first_name: K. J.
full_name: Ramalatswa, K. J.
last_name: Ramalatswa
- first_name: M. E.
full_name: Shultz, M. E.
last_name: Shultz
- first_name: A. ud-Doula
full_name: A. ud-Doula, A. ud-Doula
last_name: A. ud-Doula
citation:
ama: 'Keszthelyi Z, Koter A de, Götberg YLL, et al. The effects of surface fossil
magnetic fields on massive star evolution: IV. Grids of models at solar, LMC,
and SMC metallicities. Monthly Notices of the Royal Astronomical Society.
2022;517(2):2028-2055. doi:10.1093/mnras/stac2598'
apa: 'Keszthelyi, Z., Koter, A. de, Götberg, Y. L. L., Meynet, G., Brands, S. A.,
Petit, V., … A. ud-Doula, A. ud-Doula. (2022). The effects of surface fossil magnetic
fields on massive star evolution: IV. Grids of models at solar, LMC, and SMC metallicities.
Monthly Notices of the Royal Astronomical Society. Oxford Academic. https://doi.org/10.1093/mnras/stac2598'
chicago: 'Keszthelyi, Z., A. de Koter, Ylva Louise Linsdotter Götberg, G. Meynet,
S. A. Brands, V. Petit, M. Carrington, et al. “The Effects of Surface Fossil Magnetic
Fields on Massive Star Evolution: IV. Grids of Models at Solar, LMC, and SMC Metallicities.”
Monthly Notices of the Royal Astronomical Society. Oxford Academic, 2022.
https://doi.org/10.1093/mnras/stac2598.'
ieee: 'Z. Keszthelyi et al., “The effects of surface fossil magnetic fields
on massive star evolution: IV. Grids of models at solar, LMC, and SMC metallicities,”
Monthly Notices of the Royal Astronomical Society, vol. 517, no. 2. Oxford
Academic, pp. 2028–2055, 2022.'
ista: 'Keszthelyi Z, Koter A de, Götberg YLL, Meynet G, Brands SA, Petit V, Carrington
M, A. David-Uraz AD-U, Geen ST, Georgy C, Hirschi R, Puls J, Ramalatswa KJ, Shultz
ME, A. ud-Doula A ud-Doula. 2022. The effects of surface fossil magnetic fields
on massive star evolution: IV. Grids of models at solar, LMC, and SMC metallicities.
Monthly Notices of the Royal Astronomical Society. 517(2), 2028–2055.'
mla: 'Keszthelyi, Z., et al. “The Effects of Surface Fossil Magnetic Fields on Massive
Star Evolution: IV. Grids of Models at Solar, LMC, and SMC Metallicities.” Monthly
Notices of the Royal Astronomical Society, vol. 517, no. 2, Oxford Academic,
2022, pp. 2028–55, doi:10.1093/mnras/stac2598.'
short: Z. Keszthelyi, A. de Koter, Y.L.L. Götberg, G. Meynet, S.A. Brands, V. Petit,
M. Carrington, A.D.-U. A. David-Uraz, S.T. Geen, C. Georgy, R. Hirschi, J. Puls,
K.J. Ramalatswa, M.E. Shultz, A. ud-Doula A. ud-Doula, Monthly Notices of the
Royal Astronomical Society 517 (2022) 2028–2055.
date_created: 2023-08-21T10:11:21Z
date_published: 2022-12-01T00:00:00Z
date_updated: 2023-08-22T13:18:34Z
day: '01'
doi: 10.1093/mnras/stac2598
extern: '1'
external_id:
arxiv:
- '2209.06350'
intvolume: ' 517'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stac2598
month: '12'
oa: 1
oa_version: Published Version
page: 2028-2055
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford Academic
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The effects of surface fossil magnetic fields on massive star evolution: IV.
Grids of models at solar, LMC, and SMC metallicities'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 517
year: '2022'
...