78 citations · 434 across the 19 of their papers we have counts for
19 papers
Constraints on the normal branch of DGP gravity from SPT galaxy clusters with DES and HST weak-lensing mass calibration and from Planck PR4 CMB anisotropies
S. M. L. Vogt, S. Bocquet, C. T. Davies +49
We present constraints on the normal branch of the Dvali-Gabadadze-Porrati (nDGP) braneworld gravity model from the abundance of massive galaxy clusters. On scales below the nDGP c…
Percolation Statistics in the MillenniumTNG Simulations
Eniko Regos, Volker Springel, Sownak Bose +2
The statistical analysis of cosmic large-scale structure is most often based on simple two-point summary statistics, like the power spectrum or the two-point correlation function o…
Matter Power Spectra in Modified Gravity: A Comparative Study of Approximations and -Body Simulations
Benjamin Bose, Ashim Sen Gupta, Bartolomeo Fiorini +9
Testing gravity and the concordance model of cosmology, CDM, at large scales is a key goal of this decade's largest galaxy surveys. Here we present a comparative study of dark m…
The boundary of cosmic filaments
Wei Wang, Peng Wang, Hong Guo +12
For decades, the boundary of cosmic filaments have been a subject of debate. In this work, we determine the physically-motivated radii of filaments by constructing stacked galaxy n…
Galaxy evolution in modified gravity simulations: using passive galaxies to constrain gravity with upcoming surveys
Diego Pallero, Facundo A. Gómez, Nelson D. Padilla +5
We present a quantitative analysis of the properties of galaxies and structures evolving in universes dominated by different modified gravitational models, including two variants o…
Cosmological Probes of Structure Growth and Tests of Gravity
Jiamin Hou, Julian Bautista, Maria Berti +4
The current standard cosmological model is constructed within the framework of general relativity with a cosmological constant , which is often associated with dark energy, and…
MGLenS: Modified gravity weak lensing simulations for emulation-based cosmological inference
Joachim Harnois-Déraps, Cesar Hernandez-Aguayo, Carolina Cuesta-Lazaro +4
We present MGLenS, a large series of modified gravity lensing simulations tailored for cosmic shear data analyses and forecasts in which cosmological and modified gravity parameter…
The DESI -body Simulation Project I: Testing the Robustness of Simulations for the DESI Dark Time Survey
Cameron Grove, Chia-Hsun Chuang, Ningombam Chandrachani Devi +19
Analysis of large galaxy surveys requires confidence in the robustness of numerical simulation methods. The simulations are used to construct mock galaxy catalogs to validate data…
Towards an accurate model of small-scale redshift-space distortions in modified gravity
Cheng-Zong Ruan, Carolina Cuesta-Lazaro, Alexander Eggemeier +4
The coming generation of galaxy surveys will provide measurements of galaxy clustering with unprecedented accuracy and data size, which will allow us to test cosmological models at…
Fast full -body simulations of generic modified gravity: derivative coupling models
César Hernández-Aguayo, Cheng-Zong Ruan, Baojiu Li +4
We present MG-GLAM, a code developed for the very fast production of full -body cosmological simulations in modified gravity (MG) models. We describe the implementation, numeric…
Fast full N-body simulations of generic modified gravity: conformal coupling models
Cheng-Zong Ruan, César Hernández-Aguayo, Baojiu Li +4
We present MG-GLAM, a code developed for the very fast production of full -body cosmological simulations in modified gravity (MG) models. We describe the implementation, numeric…
Testing the theory of gravity with DESI: estimators, predictions and simulation requirements
Shadab Alam, Christian Arnold, Alejandro Aviles +33
Shortly after its discovery, General Relativity (GR) was applied to predict the behavior of our Universe on the largest scales, and later became the foundation of modern cosmology.…
The impact of modified gravity on the Sunyaev-Zel'dovich effect
Myles A. Mitchell, Christian Arnold, César Hernández-Aguayo +1
We study the effects of two popular modified gravity theories, which incorporate very different screening mechanisms, on the angular power spectra of the thermal (tSZ) and kinemati…
Galaxy formation in the brane world I: overview and first results
César Hernández-Aguayo, Christian Arnold, Baojiu Li +1
We carry out ``full-physics'' hydrodynamical simulations of galaxy formation in the normal-branch Dvali-Gabadadze-Porrati (nDGP) braneworld model using a new modified version of th…
Building a digital twin of a luminous red galaxy spectroscopic survey: galaxy properties and clustering covariance
César Hernández-Aguayo, Francisco Prada, Carlton M. Baugh +1
Luminous red galaxies (LRGs) are one of the key tracers of the large-scale structure of the Universe used by galaxy surveys. Hence, it is important to make accurate predictions for…
Measuring the BAO peak position with different galaxy selections
César Hernández-Aguayo, Marius Cautun, Alex Smith +2
We investigate if, for a fixed number density of targets and redshift, there is an optimal way to select a galaxy sample in order to measure the baryon acoustic oscillation (BAO) s…
The Galaxy Halo Connection in Modified Gravity Cosmologies: Environment Dependence of Galaxy Luminosity function
N. Chandrachani Devi, Aldo Rodríguez-Puebla, O. Valenzuela +3
We investigate the dependence of the galaxy-halo connection and galaxy density field in modified gravity models using the body simulations for and nDGP models at .…
Large-scale redshift space distortions in modified gravity theories
César Hernández-Aguayo, Jiamin Hou, Baojiu Li +2
Measurements of redshift space distortions (RSD) provide a means to test models of gravity on large-scales. We use mock galaxy catalogues constructed from large N-body simulations…
Marked clustering statistics in gravity cosmologies
César Hernández-Aguayo, Carlton M. Baugh, Baojiu Li
We analyse the two-point and marked correlation functions of haloes and galaxies in three variants of the chameleon gravity model using N-body simulations, and compare to a…