Our mission

We are an international collaboration of researchers interested in developing and applying cutting-edge statistical inference techniques to study the spatial distribution of matter in our Universe. We embrace the latest innovations in information theory and artificial intelligence to optimally extract physical information from data and use derived results to facilitate new discoveries.

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Our latest results

BORG-PM

The BORG Particle-Mesh model

We have published a new algorithm that allows to adjust with finely details the structure of the Local Universe from 2M++ data. We present some direct applications to mass measurements, peculiar velocities and density fluctuations.

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Fifth force picture

Fifth force on galaxy cluster scale

The tightest bound on fifth-force class of modified gravity models are found on the basis of the BORG-PM model and innovative small scale modelling of the gravitational field. Those bounds even hint at possible positive detection, though more investigation on the impact of galaxy physics is required to assess this claim.

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ALTAIR

Precision cosmology with expansion

We have developed a novel algorithm to infer cosmological constraints within a large-scale Bayesian inference framework. This hierarchical approach, relying purely on the geometrical symmetries of the cosmological principle, is among the first methods to extract a large fraction of information from statistics other than that of direct density contrast correlations.

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