Théo Lebeau

Théo Lebeau

PhD student in the Cosmology team at IAS, Université Paris-Saclay

Institut d'Astrophysique Spatiale (IAS), Université Paris-Saclay

Biography

I’m a PhD student in the Cosmology team at the Institut d’Astrophysique Spatiale (IAS), Paris-Saclay University, under the supervision of Nabila Aghanim (CNRS Research director, IAS Paris-Saclay University) and Jenny Sorce (CNRS Reseacher, CRIStAL Lille University).

I’m interested in understanding physics processes of the gas in galaxy clusters and their local environment such as turbulence, shocks and accretion. I quantify their contribution to the hydrostatic mass bias using state-of-the-art hydrodynamical constrained cosmological simulations reproducing the Local Universe as part of the LOCALIZATION collaboration. In particular, I extensively used a zoom-in simulated replica of the Virgo cluster.

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

Interests
  • Gas physics in and around clusters
  • Hydrostatic mass bias
  • Cosmological simulations

Projects

LOCALIZATION project

LOCALIZATION project

Simulating the Local Universe

Studying gas physics in the simulated Virgo cluster

Studying gas physics in the simulated Virgo cluster

In this project, gathering multiple works, 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 a great pathfinder in the scope of the larger LOCALIZATION project.

Latest publications

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

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(2024). Mass bias in clusters of galaxies: Projection effects on the case study of Virgo replica . Astronomy & Astrophysics, volume 682, page A157, 2024.

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