Théo Lebeau

Théo Lebeau

Postdoctoral researcher at the

Kapteyn Astronomical Institute, University of Groningen

Biography

I’m a postdoctoral researcher located at the Kapteyn Astronomical Institute at the University of Groningen. I’m also affiliated with, and funded by, ARCO at the Open University of Israel.

I’m interested in understanding physics processes of the gas in galaxy clusters and filaments such as turbulence, shocks and accretion through cosmological simulations with the aim to help understand current and future observations.

You can find my publications below or on NASA/ADS as well as my talks, posters and outreach in my CV.

Interests
  • Gas physics galaxy clusters environments and filaments
  • Turbulence, shocks and accretion
  • Cosmological simulations

Projects

The WEFT project

The WEFT project

The Web Evolution in Filament Targeted zoom simulations (WEFT) project, conducted by myself and Saleem Zaroubi, aims to better understand the gas dynamics in cosmic filaments by adapting the zoom technique of cosmological simulations onto these objects.

Studying gas physics in the simulated Virgo cluster

Studying gas physics in the simulated Virgo cluster

I use a simulated replica of the Virgo cluster to study the gas physics in and around this complex galaxy cluster. This case study serves as pathfinder in the scope of the larger LOCALIZATION project.

LOCALIZATION

LOCALIZATION

Simulating the Local Universe

Latest publications

(2026). The WEFT project: I. The emergence of turbulence in a cosmic filament. Submitted to Astronomy & Astrophysics, arXiv:2609.17205.

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(2026). Correcting the hydrostatic mass for non-thermal gas motions: a comparison of two approaches. Submitted to Astronomy & Astrophysics, arXiv:2607.00610v1.

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(2026). Gas motion in the intracluster medium of the Virgo cluster replica. Astronomy & Astrophysics, volume 707, page A336, 2026.

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(2025). Velocity fields and turbulence from cosmic filaments to galaxy clusters. Astronomy & Astrophysics, volume 704, page A14, 2025.

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(2024). Can the splashback radius be an observable boundary of galaxy clusters? . Astronomy & Astrophysics, volume 689, page A19, 2024.

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Pictures & Hobbies

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