Probing vector chirality in the early Universe
arXiv:2406.06080 · doi:10.1103/ym2n-lzts
Abstract
We explore the potential of using late-time galaxy spins to test the parity symmetry of primordial vector fossils. Using -body simulations, we analyze halo spins as a reliable proxy for galaxy spins to investigate the detectability of this effect. We develop a novel approach to generate initial conditions (ICs) that have substantial parity asymmetry but do not alter the initial matter power spectrum. We construct the initial spin fields from the parity broken ICs and halo spin fields using late-time halos evolved from such ICs. Focusing on the helicity of these vector fields, we detect substantial asymmetry in the initial spin field. In addition, we find that over of the initial spin field's asymmetry remains in the late-time halo spin field on a range of scales. Based on mock galaxy spin fields derived from the halo spin fields, we forecast that a maximum detection at is possible with the final DESI BGS for the model considered in this analysis. Our findings demonstrate that primordial vectorial parity violation survives nonlinear gravitational evolution, and thus, can be effectively probed with galaxy spins at late times.
5 pages, 3 figures. Accepted for publication in PRL
References in corpus (46)
- Large-Scale Structure of the Universe and Cosmological Perturbation Theory
- Chern-Simons Modification of General Relativity
- Mass Reconstruction with CMB Polarization
- The spin and shape of dark matter haloes in the Millennium simulation of a LambdaCDM universe
- Gauge Fields and Inflation
- New Extraction of the Cosmic Birefringence from the Planck 2018 Polarization Data
- Parity violation in the Cosmic Microwave Background from a pseudoscalar inflaton
- Connecting Angular Momentum and Galactic Dynamics: The complex Interplay between Spin, Mass, and Morphology
- DESI Bright Galaxy Survey: Final Target Selection, Design, and Validation
- Testing Tidal-Torque Theory: I. Spin Amplitude and Direction
- Circular Polarization of Primordial Gravitational Waves in String-inspired Inflationary Cosmology
- Halo Stochasticity from Exclusion and non-linear Clustering
- New physics from the polarised light of the cosmic microwave background
- Observational constraints on the curvaton model of inflation
- Cosmic Birefringence from Planck Data Release 4
- Testing Parity-Violating Mechanisms with Cosmic Microwave Background Experiments
- Is the dark-matter halo spin a predictor of galaxy spin and size?
- Probing polarization states of primordial gravitational waves with CMB anisotropies
- Improved Constraints on Cosmic Birefringence from the WMAP and Planck Cosmic Microwave Background Polarization Data
- The Large-Scale Orientations of Disk Galaxies
- Mismatch and Misalignment: Dark Haloes and Satellites of Disc Galaxies
- Clustering Fossils from the Early Universe
- Probing Parity-Violation with the Four-Point Correlation Function of BOSS Galaxies
- Anomalous CMB polarization and gravitational chirality
- Parity breaking signatures from a Chern-Simons coupling during inflation: the case of non-Gaussian gravitational waves
- Measurement of Parity-Odd Modes in the Large-Scale 4-Point Correlation Function of SDSS BOSS DR12 CMASS and LOWZ Galaxies
- Large-Scale Structure and Gravitational Waves III: Tidal Effects
- Primordial gravity wave fossils and their use in testing inflation
- The lensing and temperature imprints of voids on the Cosmic Microwave Background
- Colliding Ghosts: Constraining Inflation with the Parity-Odd Galaxy Four-Point Function
- Forecasted 21 cm constraints on compensated isocurvature perturbations
- Primordial Gravitational Waves from Galaxy Intrinsic Alignments
- Probing Primordial Chirality with Galaxy Spins
- Testing chirality of primordial gravitational waves with Planck and future CMB data: no hope from angular power spectra
- Two- and Three-Dimensional Probes of Parity in Primordial Gravity Waves
- Observational detection of correlation between galaxy spins and initial conditions
- Isotropic N-Point Basis Functions and Their Properties
- Analytic Gaussian Covariance Matrices for Galaxy -Point Correlation Functions
- Do baryons trace dark matter in the early universe?
- CUBE: An Information-optimized parallel Cosmological -body Algorithm
- Spin Parity of Spiral Galaxies I -- Corroborative Evidence for Trailing Spirals
- Observational search for primordial chirality violations using galaxy angular momenta
- Colour gradients of low-redshift galaxies in the DESI Legacy Imaging Survey
- Baryonic Effects on Lagrangian Clustering and Angular Momentum Reconstruction
- Extracting parity-violating gravitational waves from projected tidal force tensor in three dimensions
- Phenomenology of a vector-field-induced (and possibly parity breaking) compensated isocurvature perturbation