asimulation: Domain formation and impact on observables in resolved cosmological simulations of the (a)symmetron

Abstract

The symmetron is a dark energy and dark matter candidate that forms topological defects in the late-time universe and holds the promise of resolving some of the cosmological tensions. We performed high-resolution simulations of the dynamical and non-linear (a)symmetron using the recently developed relativistic N-body code asevolution. By extensively testing the temporal and spatial convergence of domain decompositioning and domain wall stability, we determined criteria and physical intuition for the convergence. We applied the resolution criteria to run five high-resolution simulations with 1280^3 grids and a box size of 500 Mpc/h of the (a)symmetron. We considered the behaviour of the scalar field and the domain walls in each scenario. We find the effect on the matter power spectra, the HMFs, and observables computed over the past light cone of an observer, such as the integrated Sachs-Wolfe and non-linear Rees-Sciama effect and the lensing, compared to LCDM. We show local oscillations of the fifth force strength and the formation of planar structures in the density field. The dynamics of the field was visualised in animations with high resolution in time. The simulation code is made publicly available.

24 pages, 27 figures. Supplementary material and videos may be found at https://oyvindchristiansen.com/projects/symmetron_resolve . The code is available at https://github.com/oyvach/asevolution

References in corpus (39)

• Toward a halo mass function for precision cosmology: the limits of universality
• The Rockstar Phase-Space Temporal Halo Finder and the Velocity Offsets of Cluster Cores
• Challenges for $\Lambda$CDM: An update
• The NANOGrav 15-year Data Set: Search for Signals from New Physics
• Symmetron Fields: Screening Long-Range Forces Through Local Symmetry Restoration
• A Test of the Cosmological Principle with Quasars
• Small-scale structure of fuzzy and axion-like dark matter
• Constraints on scalar-tensor models of dark energy from observational and local gravity tests
• A Challenge to the Standard Cosmological Model
• gevolution: a cosmological N-body code based on General Relativity
• ISIS: a new N-body cosmological code with scalar fields based on RAMSES. Code presentation and application to the shapes of clusters
• Releasing scalar fields: cosmological simulations of scalar-tensor theories for gravity beyond the static approximation
• Structure Formation in the Symmetron Model
• Systematic simulations of modified gravity: symmetron and dilaton models
• Anomalies in Physical Cosmology
• Cosmological simulations of screened modified gravity out of the static approximation: effects on matter distribution
• Tests of scalar-tensor gravity
• More out of less: an excess integrated Sachs-Wolfe signal from supervoids mapped out by the Dark Energy Survey
• New data support the existence of the Hercules-Corona Borealis Great Wall
• Radial acceleration relation from symmetron fifth forces
• Symmetron Scalar Fields: Modified Gravity, Dark Matter or Both?
• Bias and scatter in the Hubble diagram from cosmological large-scale structure
• Imprint of DES super-structures on the Cosmic Microwave Background
• On the Random Motion of Nuclear Objects in a Fuzzy Dark Matter Halo
• The part and the whole: voids, supervoids, and their ISW imprint
• A simultaneous solution to the Hubble tension and observed bulk flow within 250 $h^{-1}$ Mpc
• Dark Energy Survey Year 1 Results: the lensing imprint of cosmic voids on the Cosmic Microwave Background
• Domain walls coupled to matter: the symmetron example
• The clustering of gamma-ray bursts in the Hercules-Corona Borealis Great Wall: the largest structure in the Universe?
• Lensing with generalized symmetrons
• Gravitational transitions via the explicitly broken symmetron screening mechanism
• Clustering dark energy imprints on cosmological observables of the gravitational field
• Impact of symmetron screening on the Hubble tension: new constraints using cosmic distance ladder data
• Cosmic Tsunamis in Modified Gravity: Disruption of Screening Mechanisms from Scalar Waves
• Probing ultralight scalar, vector and tensor dark matter with pulsar timing arrays
• Accurate Computation of the Screening of Scalar Fifth Forces in Galaxies
• asevolution: a relativistic N-body implementation of the (a)symmetron
• Core and Halo Properties in Multi-Field Wave Dark Matter
• Dark sector domain walls could explain the observed planes of satellites

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