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PION: Simulating bow shocks and circumstellar nebulae around massive stars

Published online by Cambridge University Press:  29 August 2024

Jonathan Mackey*
Affiliation:
Dublin Institute for Advanced Studies, Astronomy & Astrophysics Section, DIAS Dunsink Observatory, Dublin, D15 XR2R, Ireland
Samuel Green
Affiliation:
Dublin Institute for Advanced Studies, Astronomy & Astrophysics Section, DIAS Dunsink Observatory, Dublin, D15 XR2R, Ireland
Maria Moutzouri
Affiliation:
Dublin Institute for Advanced Studies, Astronomy & Astrophysics Section, DIAS Dunsink Observatory, Dublin, D15 XR2R, Ireland
Thomas J. Haworth
Affiliation:
Astronomy Unit, School of Physics and Astronomy, Queen Mary University of London, London E1 4NS, UK
Robert D. Kavanagh
Affiliation:
Leiden Observatory, Leiden University, PO Box 9513, 2300 RA, Leiden, The Netherlands
Maggie Celeste
Affiliation:
Dublin Institute for Advanced Studies, Astronomy & Astrophysics Section, DIAS Dunsink Observatory, Dublin, D15 XR2R, Ireland School of Physics, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
Robert Brose
Affiliation:
Dublin Institute for Advanced Studies, Astronomy & Astrophysics Section, DIAS Dunsink Observatory, Dublin, D15 XR2R, Ireland
Davit Zargaryan
Affiliation:
Dublin Institute for Advanced Studies, Astronomy & Astrophysics Section, DIAS Dunsink Observatory, Dublin, D15 XR2R, Ireland

Abstract

Expanding nebulae are produced by mass loss from stars, especially during late stages of evolution. We describe the algorithms and methods implemented in the radiation-magnetohydrodynamics (MHD) code PION for highly scalable simulations using static mesh-refinement. We present results from 3D MHD simulations of bow shocks around runaway massive stars, and of the expansion of a fast wind from a Wolf-Rayet star into the slow wind from a previous red supergiant phase of evolution. PION is free software that can be downloaded from https://www.pion.ie/

Type
Poster Paper
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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References

García-Segura, G., Langer, N., & Mac Low, M. 1996, A&A, 316, 133 Google Scholar
Green, S., Mackey, J., Kavanagh, P., Haworth, T. J., Moutzouri, M., & Gvaramdaze, V. V. 2022, Astronom & Astrophysics, in press, arXiv:2203.06331Google Scholar
Mackey, J., Green, S., Moutzouri, M., Haworth, T. J., Kavanagh, R. D., Zargaryan, D., & Celeste, M. 2021, MNRAS, 504, 983 CrossRefGoogle Scholar
Supplementary material: PDF

Mackey et al. supplementary material

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