Publications (62)
Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances and Weak Lensing
DES Collaboration, Tim Abbott, Michel Aguena +129
We perform a joint analysis of the counts and weak lensing signal of redMaPPer clusters selected from the Dark Energy Survey (DES) Year 1 dataset. Our analysis uses the same shear…
New catalogue of dark-matter halo properties identified in MICE-GC -- I. Analysis of density profile distributions
Elizabeth J. Gonzalez, Kai Hoffmann, Diego R. GarcÃa Lambas +10
Constraints on dark matter halo masses from weak gravitational lensing can be improved significantly by using additional information about the morphology of their density distribut…
A peek outside our Universe
Enrique Gaztanaga, Pablo Fosalba
According to general relativity (GR), a universe with a cosmological constant , like ours, is trapped inside an event horizon, . What is outside? We show, using…
On the radiative efficiencies, Eddington ratios, and duty cycles of luminous high-redshift quasars
Francesco Shankar, Martin Crocce, Jordi Miralda-Escude' +2
We investigate the characteristic radiative efficiency ε, Eddington ratio λ, and duty cycle P_0 of high-redshift active galactic nuclei (AGN), drawing on measurements of the AGN…
ICE-COLA: Towards fast and accurate synthetic galaxy catalogues optimizing a quasi -body method
Albert Izard, Martin Crocce, Pablo Fosalba
Next generation galaxy surveys demand the development of massive ensembles of galaxy mocks to model the observables and their covariances, what is computationally prohibitive using…
Cell Count Moments in the Halo Model
J. N. Fry, Stephane Colombi, Pablo Fosalba +3
We study cell count moments up to fifth order of the distributions of haloes, of halo substructures as a proxy for galaxies, and of mass in the context of the halo model and compar…