128 citations · 222 across the 5 of their papers we have counts for
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The fully connected N-dimensional skeleton: probing the evolution of the cosmic web
T. Sousbie, S. Colombi, C. Pichon
A method to compute the full hierarchy of the critical subsets of a density field is presented. It is based on a watershed technique and uses a probability propagation scheme to im…
On the Onset of Stochasticity in CDM Cosmological Simulations
Jerome Thiebaut, Christophe Pichon, Thierry Sousbie +2
The onset of stochasticity is measured in CDM cosmological simulations using a set of classical observables. It is quantified as the local derivative of the logarithm of the dis…
Recovering the topology of the IGM at z~2
S. Caucci, S. Colombi, C. Pichon +3
We investigate how well the 3D density field of neutral hydrogen in the Intergalactic Medium (IGM) can be reconstructed using the Lyman-alpha absorptions observed along lines of si…
The three dimensional skeleton: tracing the filamentary structure of the universe
T. Sousbie, C. Pichon, S. Colombi +2
The skeleton formalism aims at extracting and quantifying the filamentary structure of the universe is generalized to 3D density fields; a numerical method for computating a local…
The 3D skeleton of the SDSS
Thierry Sousbie, Christophe Pichon, Hélène Courtois +2
The length of the three-dimensional filaments observed in the fourth public data-release of the SDSS is measured using the {\em local skeleton} method. It consists in defining the…