148 citations · 908 across the 30 of their papers we have counts for
5 papers · 1 filter
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…
A general framework to test gravity using galaxy clusters III: Observable-mass scaling relations in gravity
Myles A. Mitchell, Christian Arnold, Baojiu Li
We test two methods, including one that is newly proposed in this work, for correcting for the effects of chameleon gravity on the scaling relations between the galaxy clust…
Proca-stinated Cosmology I: A N-body code for the vector Galileon
Christoph Becker, Christian Arnold, Baojiu Li +1
We investigate the nonlinear growth of large-scale structure in the generalised Proca theory, in which a self-interacting massive vector field plays the role of driving the acceler…
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…