activity
20172026
most citedThe Santiago-Harvard-Edinburgh-Durham void comparison I: SHEDding light on chameleon gravity tests

123 citations · 247 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.CO2026

Marked statistics across the cosmic web: Environmental dependent clustering in modified gravity simulations

Joaquin Armijo, Lucas Da Costa

We study environment-dependent clustering using the marked correlation function applied to Hu-Sawicki modified gravity simulations. This gravity theory enriches the structur…

astro-ph.CO2025

Non-linear infusion of intrinsic alignment and source clustering: impact on non-Gaussian cosmic shear statistics

J. Harnois-Déraps, N. Šarčević, L. Medina Varela +15

Intrinsic alignments (IA) of galaxies is one of the key secondary signals to cosmic shear measurements, and must be modeled to interpret weak lensing data and infer the correct cos…

astro-ph.CO2023★ 5 cited

A new test of gravity -- II: Application of marked correlation functions to luminous red galaxy samples

Joaquin Armijo, Carlton M. Baugh, Peder Norberg +1

We apply the marked correlation function test proposed by Armijo et al. (Paper I) to samples of luminous red galaxies (LRGs) from the final data release of the Sloan Digital Sky Su…

astro-ph.CO2023★ 7 cited

A new test of gravity -- I: Introduction to the method

Joaquin Armijo, Carlton M. Baugh, Peder Norberg +1

We introduce a new scheme based on the marked correlation function to probe gravity using the large-scale structure of the Universe. We illustrate our approach by applying it to si…

astro-ph.CO2021★ 4 cited

Making use of sub-resolution halos in N-body simulations

Joaquin Armijo, Carlton M. Baugh, Nelson D. Padilla +2

Conservative mass limits are often imposed on the dark matter halo catalogues extracted from N-body simulations. By comparing simulations with different mass resolutions, at …

astro-ph.CO2018★ 71 cited

The Santiago-Harvard-Edinburgh-Durham void comparison II: unveiling the Vainshtein screening using weak lensing

Enrique Paillas, Marius Cautun, Baojiu Li +4

We study cosmic voids in the normal-branch Dvali-Gabadadze-Porrati (nDGP) braneworld models, which are representative of a class of modified gravity theories where deviations from…

astro-ph.CO2018★ 37 cited

Testing modified gravity using a marked correlation function

Joaquin Armijo, Yan-Chuan Cai, Nelson Padilla +2

In theories of modified gravity with the chameleon screening mechanism, the strength of the fifth force depends on environment. This induces an environment dependence of structure…

astro-ph.CO2017★ 123 cited

The Santiago-Harvard-Edinburgh-Durham void comparison I: SHEDding light on chameleon gravity tests

Marius Cautun, Enrique Paillas, Yan-Chuan Cai +4

We present a systematic comparison of several existing and new void finding algorithms, focusing on their potential power to test a particular class of modified gravity models - ch…