supported by ERC advanced Grant 740021-ARThUs

Useful Links :

ERC-ARThUs Group of the AstroENS Team


ERC Publications / Seminars and Round Tables / Alumni and Visitors / Current Collaborators / Available Software / Group Photos

Read Insight Comments on : inhomogeneous cosmologies / backreaction and the foliation problem / CMB analysis

Group Members


Thomas Buchert (PR, Head of Group, PI ERC, CRAL)
- coordination of group activities
Martin J. France (ERC Research Technician, Computational Science Department, CRAL)
- robust image analysis - Minkowski Functionals


Frank Steiner (PR, CRAL)
- CMB and non-trivial topologies


Pratyush Pranav (ERC Postdoc, CRAL)
- data analysis, topological statistics
Léo Brunswic (ERC Postdoc, CRAL)
- geometrical and topological problems in theories of gravitation
Nezihe Uzun (ERC Postdoc, CRAL)
- statistical geometry, light cone
Asta Heinesen (ERC Postdoc, CRAL)
- foliation problem, template metrics, supernovae, galaxy catalogs

Closely collaborating Postdocs:

Xavier Roy (York, U.K.)
- scalar field models, backreaction, stability, foliation problem
Jan J. Ostrowski (Warsaw, Poland)
- scale-dependent relations to Dark Energy and Dark Matter
Ismael Delgado Gaspar (UNAM, Mexico)
- exact solutions
Pierre Mourier (AEI Hannover, Germany)
- structure formation, foliation problem, gravitational entropies


Quentin Vigneron (PhD student, CRAL)
- effective scalar fields for Dark Matter, relativistic simulations
Martin J. France (PhD student, CRAL)
- CMB in finite universe models
Alfred Bovon (M2 student ENS, CRAL)
- Closure via virialization of Newtonian volume-partitioned simulations
Antonin Borderies (M1 student ENS, CRAL)
- Anisotropies in supernova-Ia data - model-independent analysis

Closely Collaborating Students:

Étienne Jaupart (PhD student, CRAL)
- cosmic virial and homogeneity conditions
Francesco Sartini (PhD student, Physics)
- globally stationary cosmologies
Matthieu Chatelain (M1 student ENS, CRAL)
- Topological constraints in averaged spherically symmetric exact solutions



Last Update: March 22, 2021

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