Bugnet Group
Asterics – Asteroseismology and Stellar Dynamics
Understanding the internal processes of stars is essential for accurately characterizing them, which in turn provides critical insights into a wide range of astronomical objects—from exoplanets to entire galaxies. Recent advances in asteroseismology, a branch of stellar physics that analyzes the oscillations of stars, have opened up questions about our understanding of stellar evolution, which can reshape our understanding of ages in the universe.
Magnetic fields are largely excluded from stellar evolution models due to a lack of observation and theoretical prescriptions. Specialized in Magnetoasteroseismology, the Bugnet group aims to understand the magnetic evolution of stars and their dynamic processes. Research in the group combines theory of waves in plasma, stellar evolution models, and observational analyses of asteroseismology data to better understand stellar magnetic fields, which shed light on the evolution of stars like the Sun.
Group Leader
Administrative Support
Team
Current Projects
Detection and characterization of magnetic fields inside stars with Asteroseismology | Signatures of magnetic fields in convective cores | Magnetic fields in radiative interiors from the red giant branch to the white dwarf stage | Magnetic field survival and evolution | Effect of magnetism on angular momentum transport in stellar interiors
Publications
Mombarg JSG, Vanlaer V, Das SB, Rieutord M, Aerts C, Bugnet LA, Mathis S, Reese DR, Ballot J. 2025. Is a 1D perturbative method sufficient for asteroseismic modelling of β Cephei pulsators? Implications for measurements of rotation and internal magnetic fields. Astronomy and Astrophysics. 704, A336. View
Mombarg J, Vanlaer V, Das SB, Rieutord M, Aerts C, Bugnet LA, Mathis S, Reese D, Ballot J. 2025. Is a 1D perturbative method sufficient for asteroseismic modelling of β Cephei pulsators?, Zenodo, 10.5281/ZENODO.17580178. View
Vanlaer V, Bowman DM, Burssens S, Das SB, Bugnet LA, Mathis S, Aerts C. 2025. Interior rotation modelling of the β Cep pulsator HD 192575 including multiplet asymmetries. Astronomy and Astrophysics. 701, A5. View
Barrault L, Bugnet LA, Mathis S, Mombarg JSG. 2025. Exploring the probing power of γ Dor’s inertial dip for core magnetism: The case of a toroidal field. Astronomy and Astrophysics. 701, A253. View
Rauer H et al. 2025. The PLATO mission. Experimental Astronomy. 59(3), 26. View
ReX-Link: Lisa Bugnet
Career
Since 2023 Assistant Professor, Institute of Science and Technology Austria (ISTA)
2020 – 2022 Flatiron Research Fellow, Flatiron Institute, Simons Foundation, New York, USA
2020 PhD, The French Alternative Energies and Atomic Energy Commission (CEA), Paris-Cité University, Paris, France
Selected Distinctions
Since 2026, Associate Editor for Stellar Physics, Astronomy & Astrophysics (A&A) journal
2024 ERC Starting Grant
2021 PhD Prize of the French Society of Astronomy and Astrophysics (SF2A)
2020 PhD Prize of the International Astronomical Union (IAU) – Division G
2020 Flatiron Research Fellowship, Flatiron Institute, USA
2019 “For Women in Science” Young Fellow France, L’Oréal-UNESCO
2019 Best Oral contribution, KASC/TASC conference, Aarhus University, Denmark
Additional Information
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Astronomy and Astrophysics at ISTA
