313 citations · 519 across the 13 of their papers we have counts for
7 papers · 1 filter
Searching for signatures of inflationary massive fields in DESI Imaging data and Stage-V galaxy surveys
Walter Riquelme, Santiago Avila, Lucas Pinol +2
We investigate the cosmological imprints of massive fields during inflation through primordial non-Gaussianity (PNG). When these fields are sufficiently light, they produce a signa…
Challenges to the cosmological constant model following results from the Dark Energy Survey
Santiago Avila, Juan Mena-Fernández, Maria Vincenzi
In the last year, several pieces of evidence have pointed to a possible deviation from the standard cosmological model, CDM. The recent work by the Dark Energy Survey (DES) coll…
Accurate -body simulations with local Primordial non-Gaussianities: initial conditions and aliasing
Adrian G. Adame, Santiago Avila, Violeta Gonzalez-Perez +3
New generation galaxy surveys targeting constraints on local primordial non-Gaussianity (PNG) demand -body simulations that accurately reproduce its effects. In this work, we ex…
An improved Halo Occupation Distribution prescription from UNITsim H_alpha Emission Line Galaxies: conformity and modified radial profile
Guillermo Reyes-Peraza, Santiago Avila, Violeta Gonzalez-Perez +4
Emission line galaxies (ELGs) are targeted by the new generation of spectroscopic surveys to make unprecedented measurements in cosmology from their distribution. Accurately interp…
PNG-UNITsims: Halo clustering response to primordial non-Gaussianities as a function of mass
Adrian G. Adame, Santiago Avila, Violeta Gonzalez-Perez +7
We present the largest full N-body simulation to date with local primordial non-Gaussianities (L-PNG), the \textsc{PNG-UNITsim}. It tracks the evolution of particles withi…
Improving and extending non-Poissonian distributions for satellite galaxies sampling in HOD: applications to eBOSS ELGs
Bernhard Vos-Ginés, Santiago Avila, Violeta Gonzalez-Perez +1
Halo Occupation Distribution (HOD) models help us to connect observations and theory, by assigning galaxies to dark matter haloes. In this work we study one of the components of HO…
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic power spectrum between redshifts 0.6 and 1.0
Héctor Gil-Marín, Julián E. Bautista, Romain Paviot +37
We analyse the clustering of the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey Data Release 16 luminous red galaxy sample (DR16 eBOSS LRG) in combina…