62 citations · 241 across the 13 of their papers we have counts for
13 papers
Validation of the Hybrid Bias Expansion model for the galaxy bispectrum
Marcos Pellejero Ibáñez, Raul E. Angulo, Laila Linke +8
The Hybrid Bias Expansion model (also known as Hybrid Effective Field Theory, HEFT) provides a promising way to extend the range of validity of perturbative large-scale structure m…
Perturbative Likelihoods for Large-Scale Structure of the Universe
Rodrigo Voivodic
This work presents a formalism for deriving likelihoods of the cosmological density field directly from first principles within Perturbation Theory (PT). By assuming a perturbative…
Gaussian Lagrangian Galaxy Bias
Jens Stücker, Marcos Pellejero-Ibáñez, Rodrigo Voivodic +1
Understanding -- that is the statistical relation between matter and galaxies -- is of key importance for extracting cosmological information from galaxy sur…
Probabilistic Lagrangian bias estimators and the cumulant bias expansion
Jens Stücker, Marcos Pellejero-Ibáñez, Raul E. Angulo +2
The spatial distribution of galaxies is a highly complex phenomenon currently impossible to predict deterministically. However, by using a statistical relation, it…
The Effective Field Theory of Large-Scale Structure and Multi-tracer II: redshift space and realistic tracers
Thiago Mergulhão, Henrique Rubira, Rodrigo Voivodic
We extend the multi-tracer (MT) formalism of the effective field theory of large-scale structure to redshift space, comparing the results of MT to a single-tracer analysis when ext…
The Effective Field Theory of Large-Scale Structure and Multi-tracer
Thiago Mergulhão, Henrique Rubira, Rodrigo Voivodic +1
We study the performance of the perturbative bias expansion when combined with the multi-tracer technique, and their impact on the extraction of cosmological parameters. We conside…
Responses of Halo Occupation Distributions: a new ingredient in the halo model & the impact on galaxy bias
Rodrigo Voivodic, Alexandre Barreira
Halo occupation distribution (HOD) models describe the number of galaxies that reside in different haloes, and are widely used in galaxy-halo connection studies using the halo mode…
The Effective Field Theory and Perturbative Analysis for Log-Density Fields
Henrique Rubira, Rodrigo Voivodic
A logarithm transformation over the matter overdensity field brings information from the bispectrum and higher-order n-point functions to the power spectrum. We calculate the p…
Excursion Set Halos -- ExSHalos: A New Parameter Free Method for Fast Generation of Halo Catalogues
Rodrigo Voivodic, Marcos Lima, Luis Raul Abramo
We develop a new, simple, fast and parameter-free method to construct dark matter halo catalogues. This method requires as inputs only the linear matter power spectrum and the thre…
Cosmic voids in modified gravity scenarios
E L D Perico, R Voivodic, M Lima +1
Modified gravity (MG) theories aim to reproduce the observed acceleration of the Universe by reducing the dark sector while simultaneously recovering General Relativity (GR) within…
Relation between the Turnaround radius and virial mass in model
Rafael C. C. Lopes, Rodrigo Voivodic, L. Raul Abramo +1
We investigate the relationship between the turnaround radius () and the virial mass () of cosmic structures in the context of CDM model and in an model of modi…
Turnaround radius in model
Rafael C. C. Lopes, Rodrigo Voivodic, Luis Raul Abramo +1
We investigate the turnaround radius in the spherical collapse model, both in General Relativity and in modified gravity, in particular scenarios. The phases of spherical co…
Modelling Void Abundance in Modified Gravity
Rodrigo Voivodic, Marcos Lima, Claudio Llinares +1
We use a spherical model and an extended excursion set formalism with drifting diffusive barriers to predict the abundance of cosmic voids in the context of general relativity as w…