31 citations · 69 across the 11 of their papers we have counts for
12 papers
Learning cosmic web environments with diffusion models
Mehdi Noor, Tony Bonnaire, Nabila Aghanim +1
The cosmic web, consisting of an intricate network of voids, walls, filaments, and nodes, encodes key information about structure formation and the cosmological parameters that gov…
On the role of non-linear latent features in bipartite generative neural networks
Tony Bonnaire, Giovanni Catania, Aurélien Decelle +1
We investigate the phase diagram and memory retrieval capabilities of bipartite energy-based neural networks, namely Restricted Boltzmann Machines (RBMs), as a function of the prio…
X-ray emission in IllustrisTNG circum-cluster environments. II -- Possible origins of the soft X-ray excess emission
Celine Gouin, Daniela Galárraga-Espinosa, Massimiliano Bonamente +9
An excess of soft X-ray emission (0.2-1 keV) above the contribution from the hot intra-cluster medium (ICM) has been detected in a number of galaxy clusters, including the Coma clu…
Euclid Quick Data Release (Q1). The role of cosmic connectivity in shaping galaxy clusters
Euclid Collaboration, C. Gouin, C. Laigle +337
The matter distribution around galaxy clusters is distributed over several filaments, reflecting their positions as nodes in the large-scale cosmic web. The number of filaments con…
Tracing gaseous filaments connected to galaxy clusters: the case study of Abell 2744
Stefano Gallo, Nabila Aghanim, Céline Gouin +4
Filaments connected to galaxy clusters are crucial environments to study the building up of cosmic structures as they funnel matter towards the clusters' deep gravitational potenti…
Dissecting a miniature universe: A multi-wavelength view of galaxy quenching in the Shapley supercluster
N. Aghanim, T. Tuominen, V. Bonjean +3
Multiple-cluster systems, superclusters, contain large numbers of galaxies assembled in clusters inter-connected by multi-scale filamentary networks. As such, superclusters are a s…
Cosmology with cosmic web environments II. Redshift-space auto and cross power spectra
Tony Bonnaire, Joseph Kuruvilla, Nabila Aghanim +1
Degeneracies among parameters of the cosmological model are known to drastically limit the information contained in the matter distribution. In the first paper of this series, we s…
Self-supervised component separation for the extragalactic submillimeter sky
V. Bonjean, H. Tanimura, N. Aghanim +2
We use a new approach based on self-supervised deep learning networks originally applied to transparency separation in order to simultaneously extract the components of the extraga…
Cosmology with cosmic web environments I. Real-space power spectra
Tony Bonnaire, Nabila Aghanim, Joseph Kuruvilla +1
We undertake the first comprehensive and quantitative real-space analysis of the cosmological information content in the environments of the cosmic web (voids, filaments, walls, an…
Regularization of Mixture Models for Robust Principal Graph Learning
Tony Bonnaire, Aurélien Decelle, Nabila Aghanim
A regularized version of Mixture Models is proposed to learn a principal graph from a distribution of -dimensional data points. In the particular case of manifold learning for r…
Shape and connectivity of groups and clusters: Impact of dynamical state and accretion history
C. Gouin, T. Bonnaire, N Aghanim
Matter distribution around clusters is highly anisotropic from their being the nodes of the cosmic web. Clusters' shape and the number of filaments they are connected to, i.e., the…
Cascade of Phase Transitions for Multi-Scale Clustering
T. Bonnaire, A. Decelle, N. Aghanim
We present a novel framework exploiting the cascade of phase transitions occurring during a simulated annealing of the Expectation-Maximisation algorithm to cluster datasets with m…