Publications

Underlined text highlights undergraduate students I mentored or co-mentored on these projects.
Stochastic excitation of waves in magnetic stars - I. Scaling laws for the mode amplitudes

Bessila L. & Mathis S. (2024), Astronomy & Astrophysics, 690, A270

Paper
The impact of rotation on the stochastic excitation of stellar acoustic modes in solar-like pulsators

Bessila L., Deckx Van Ruys A., Buriasco V., Mathis S., Bugnet L., García R.A.,  Mathur, S. (2025), Accepted for publication in Astronomy & Astrophysics

ArXiv
Impact of differential rotation on the stochastic excitation of stellar acoustic modes in solar-like pulsators

Biscarrat G., Bessila L., Mathis S., (co-first author), Submitted to Astronomy & Astrophysics

Articles in preparation

A model for rotating and magnetized convection for stellar and planetary interiors

Bessila L. , Mathis S., in preparation for Astronomy & Astrophysics

We propose an adaptation of the Mixing Length Theory for convection that accounts for the combined effects of rotation and magnetism, to improve the modeling of stellar and planetary interiors.

Related presentation
Stochastic excitation of waves in magnetic stars - II. Spectral description

Bessila L. , Mathis S., in preparation for Astronomy & Astrophysics

This contribution continues the study initiated in the first eponymous paper, proposing a more complex theoretical framework that incorporates the spectral modeling of magnetised turbulence.

Gravito-inertial waves generation by convective plumes

Abdulnour N., Bessila L. , Mathis S., in preparation for Astronomy & Astrophysics

We have developed a semi-analytical framework to model the excitation of gravito-inertial waves by convective plumes, as well as their implications for angular momentum transport.

Related presentation

Contribution in medical research

Risque infectieux et traumatismes à haute énergie cinétique. A propos d'une chute verticale

L. Bessila, O. Bellon, C. Bernet, C. Chapuis, M. Fessy, G. Laroussinie, M. Le Coq, V. Perraud, F. Ruban-Agniel, D. Trivier, F. Tissot Guerraz, Revue Française du Dommage corporel (2023)

En collaboration avec une équipe de médecins, j’ai proposé une modélisation physique de la chute à haute énergie cinétique d’un patient. Cette étude complète des travaux sur le risque infectieux après une telle chute.

Paper (in french)

Oral presentations

Conferences

The impact of magnetic field on the stochastic excitation of acoustic modes

Non-linear physics days, March 2025, Paris (France)

A model of magnetised and rotating convection in stellar and planetary interiors

Geophysical and Astrophysical Fluids and Dynamos Meeting, September 2024, Leeds (United-Kingdom)

Slides
Stochastic Excitation of p-modes with Rotation and Magnetic Fields

The BRITE Side of Stars: Celebrating the 10th Anniversary of BRITE Constellation, Août 2024, Vienna (Autriche)

Slides
Stochastic Excitation of p-modes with Rotation and Magnetic Fields

TASC-KASC conference on Kepler and TESS space missions, Juillet 2024, Porto (Portugal)

Slides
Impact of magnetic field on the stochastic excitation by turbulent convection

Geophysical and Astrophysical Fluid Dynamics: Experiments and Models, September 2023, Nice (France)

Slides

Other talks

A model of magnetized and rotating convection in stellar interiors

4D Stars ERC Synergy workshop, Toulouse (France), January 2025

Slides
Stochastic excitation of waves in stars with rotation and magnetism

Internal Seminar of the Laboratoire des Étoiles, Exoplanètes et de leur Environnement, Saclay (France), March 2024

Stochastic excitation of waves in stars with rotation and magnetism

4D Stars ERC Synergy workshop, Leuven (Belgium), March 2024

Posters

Conferences

A model of magnetised and rotating convection in stellar and planetary interiors

TASC-KASC conference on Kepler and TESS space missions, Juillet 2024, Porto (Portugal)

Slides
The impact of magnetic field and rotation on the stochastic excitation of acoustic modes

Conférence annuelle de la Société Française d’Astronomie et d’Astrophysique, Juin 2023, Paris (France)

Slides
The impact of rotation on the stochastic excitation of acoustic modes

Journées du Non-Linéaire, Mars 2024, Paris (France)

The impact of magnetic field on the stochastic excitation of acoustic modes,

Conférence annuelle de la Société Française d’Astronomie et d’Astrophysique, Juin 2023, Paris (France)

The impact of magnetic field on the stochastic excitation of acoustic modes

PLATO Science Conference, June 2023, Milazzo (Italy)