Search Results for author: Alejandro Aviles

Found 5 papers, 4 papers with code

Redshift space power spectrum beyond Einstein-de Sitter kernels

1 code implementation9 Dec 2020 Alejandro Aviles, Georgios Valogiannis, Mario A. Rodriguez-Meza, Jorge L. Cervantes-Cota, Baojiu Li, Rachel Bean

We develop a framework to compute the redshift space power spectrum (PS), with kernels beyond Einstein-de Sitter (EdS), that can be applied to a wide variety of generalized cosmologies.

Cosmology and Nongalactic Astrophysics

Nonlinear evolution of initially biased tracers in modified gravity

1 code implementation20 Sep 2018 Alejandro Aviles, Mario Alberto Rodriguez-Meza, Josue De-Santiago, Jorge L. Cervantes-Cota

In this work we extend the perturbation theory for modified gravity (MG) in two main aspects.

Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

Renormalization of Lagrangian bias via spectral parameters

1 code implementation14 May 2018 Alejandro Aviles

We extend the definition of Lagrangian local bias proposed by Matsubara (2008) to include curvature and higher-derivative bias operators.

Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

Lagrangian perturbation theory for modified gravity

no code implementations30 May 2017 Alejandro Aviles, Jorge L. Cervantes-Cota

We present a formalism to compute Lagrangian displacement fields for a wide range of cosmologies in the context of perturbation theory up to third order.

Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

A Lagrangian effective field theory

1 code implementation17 Jun 2015 Zvonimir Vlah, Martin White, Alejandro Aviles

We find that all of our models fare well on scales larger than about two to three times the non-linear scale, but fail as the non-linear scale is approached.

Cosmology and Nongalactic Astrophysics

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