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Massive star interiors revealed by gravity wave asteroseismology and high-resolution spectroscopy

Published online by Cambridge University Press:  29 August 2024

Dominic M. Bowman Open the ORCID record for Dominic M. Bowman [Opens in a new window]
Dominic M. Bowman*
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
*
email: dominic.bowman@kuleuven.be
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Abstract

In recent years, it has been discovered that massive stars commonly exhibit a non-coherent form of variability in their light curves referred to as stochastic low frequency (SLF) variability. Various physical mechanisms can produce SLF variability in such stars, including stochastic gravity waves excited at the interface of convective and radiative regions, dynamic turbulence generated in the near-surface layers, and clumpy winds. Gravity waves in particular are a promising candidate for explaining SLF variability as they can be ubiquitously generated in main sequence stars owing to the presence of a convective core, and because they provide the large-scale predominantly tangential velocity field required to explain macroturbulence in spectral line fitting. Here, I provide an overview of the methods and results of studying SLF variability in massive stars from time series photometry and spectroscopy.

Keywords

stars: early-typestars: oscillations (including pulsations)stars: interiorswaves
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S361: Massive Stars Near and Far , May 2022 , pp. 376 - 381
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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References

Aerts et al. 2019, ARAA, 57, 35–78 10.1146/annurev-astro-091918-104359CrossRefGoogle Scholar
Aerts et al. 2009, A&A, 508, 409–419 Google Scholar
Aerts & Rogers 2015, ApJL, 806, L33 CrossRefGoogle Scholar
Aerts 2021, Reviews of Modern Physics, 93, 015001 CrossRefGoogle Scholar
Auvergne et al. 2009, A&A, 506, 411–424 Google Scholar
Borucki et al. 2010, Science, 327, 977 10.1126/science.1185402CrossRefGoogle Scholar
Bowman 2017, Springer, Amplitude modulation of pulsation modes in delta Scuti starsCrossRefGoogle Scholar
Bowman et al. 2019, A&A, 621, A135 Google Scholar
Bowman et al. 2019, Nature Astronomy, 3, 760–765 CrossRefGoogle Scholar
Bowman et al. 2020, A&A, 640, A36 Google Scholar
Bowman et al. 2022, A&A, 658, A96 Google Scholar
Bowman 2020, Fron. Astron. Space Sci., 7, 70 Google Scholar
Burssens et al. 2020, A&A, 639, A81 Google Scholar
Cantiello et al. 2009, A&A, 499, 279–290 Google Scholar
Cantiello et al. 2021, ApJ, 915, 112 CrossRefGoogle Scholar
Dorn-Wallenstein et al. 2020, ApJ, 878, 155 Google Scholar
Edelmann et al. 2019, ApJ, 876, 4 10.3847/1538-4357/ab12dfCrossRefGoogle Scholar
Elliott et al. 2022, MNRAS, 509, 4246–4255 Google Scholar
Grassitelli et al. 2015, ApJL, 808, L31 Google Scholar
Horst et al. 2020, A&A, 641, A18 Google Scholar
Howell et al. 2014, PASP, 126, 398–408 Google Scholar
Jermyn et al. 2022, ApJ, 926, 221 Google Scholar
Jiang et al. 2015, ApJ, 813, 74 10.1088/0004-637X/813/1/74CrossRefGoogle Scholar
Jiang et al. 2018, Nat, 561, 498–501 10.1038/s41586-018-0525-0CrossRefGoogle Scholar
Lecoanet et al. 2019 ApJL, 886, L15CrossRefGoogle Scholar
Lecoanet et al. 2021 MNRAS, 508, 132-143CrossRefGoogle Scholar
Lucy 1976 ApJ, 206, 499CrossRefGoogle Scholar
Nazé et al. 2021, MNRAS, 502, 5038–5048 10.1093/mnras/stab133CrossRefGoogle Scholar
Ricker et al. 2015, J. Astron. Telesc., Instrum., Sys., 1, 014003 Google Scholar
Rogers et al. 2013, ApJ, 772, 21 Google Scholar
Rogers 2015, ApJL, 815, L30 CrossRefGoogle Scholar
Rogers & McElwaine 2017, ApJL, 848, L1 Google Scholar
Schultz et al. 2022, ApJL, 924, L11 10.3847/2041-8213/ac441fCrossRefGoogle Scholar
Simón-Daz et al. 2011, Bulletin de la Societe Royale des Sciences de Liege, 80, 514–518 Google Scholar
Simón-Daz et al. 2014, A&A, 562, A135 Google Scholar
Simón-Daz et al. 2017, A&A, 597, A22 Google Scholar