High-redshift JWST Observations and Primordial Non-Gaussianity

Abstract

Several bright and massive galaxy candidates at high redshifts have been recently observed by the James Webb Space Telescope. Such early massive galaxies seem difficult to reconcile with standard $\Lambda$ Cold Dark Matter model predictions. We discuss under which circumstances such observed massive galaxy candidates can be explained by introducing primordial non-Gaussianity in the initial conditions of the cosmological perturbations.

arXiv comment10 pages, 4 figures. v2: matching published version

References in corpus (54)

• Galactic Stellar and Substellar Initial Mass Function
• The cosmological simulation code GADGET-2
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• Toward a halo mass function for precision cosmology: the limits of universality
• Mass function of dark matter halos
• The Rockstar Phase-Space Temporal Halo Finder and the Velocity Offsets of Cluster Cores
• Non-Gaussianity from Inflation: Theory and Observations
• The Large Scale Bias of Dark Matter Halos: Numerical Calibration and Model Tests
• An excursion set model of hierarchical clustering: Ellipsoidal collapse and the moving barrier
• The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
• Precision Determination of the Mass Function of Dark Matter Halos
• The halo mass function from the dark ages through the present day
• Galaxy Clusters in Hubble Volume Simulations: Cosmological Constraints from Sky Survey Populations
• A Long Time Ago in a Galaxy Far, Far Away: A Candidate z ~ 12 Galaxy in Early JWST CEERS Imaging
• Transients from Initial Conditions: A Perturbative Analysis
• The abundance of high-redshift objects as a probe of non-Gaussian initial conditions
• Effects of Scale-Dependent Non-Gaussianity on Cosmological Structures
• Discovery and properties of ultra-high redshift galaxies ($9<z<12$) in the JWST ERO SMACS 0723 Field
• The universality of the virial halo mass function and models for non-universality of other halo definitions
• The Halo Mass Function: High-Redshift Evolution and Universality
• Evolution of the Mass Function of Dark Matter Haloes
• Revealing Galaxy Candidates out to $z\sim 16$ with JWST Observations of the Lensing Cluster SMACS0723
• Running Non-Gaussianities in DBI Inflation
• Halo mass function and scale-dependent bias from N-body simulations with non-Gaussian initial conditions
• Large-scale Bias and Efficient Generation of Initial Conditions for Non-Local Primordial Non-Gaussianity
• Constraining primordial non-Gaussianity with future galaxy surveys
• Extreme Value Statistics of the Halo and Stellar Mass Distributions at High Redshift: are JWST Results in Tension with ΛCDM?
• Constraining Running Non-Gaussianity
• Scale-dependent non-Gaussianity probes inflationary physics
• Rapidly-Varying Speed of Sound, Scale Invariance and Non-Gaussian Signatures
• Accelerating early massive galaxy formation with primordial black holes
• Redshift-weighted constraints on primordial non-Gaussianity from the clustering of the eBOSS DR14 quasars in Fourier space
• First Batch of Candidate Galaxies at Redshifts 11 to 20 Revealed by the James Webb Space Telescope Early Release Observations
• Balancing the efficiency and stochasticity of star formation with dust extinction in z > 10 galaxies observed by JWST
• Signature of primordial non-Gaussianity of phi^3-type in the mass function and bias of dark matter haloes
• High-Redshift Galaxies from Early JWST Observations: Constraints on Dark Energy Models
• Verifying the consistency relation for the scale-dependent bias from local primordial non-Gaussianity
• Dark matter halo abundances, clustering and assembly histories at high redshift
• Testing the Running of non-Gaussianity through the CMB mu-distortion and the Halo Bias
• The Hunt for Primordial Interactions in the Large Scale Structures of the Universe
• Strongly Scale-dependent Non-Gaussianity
• Large non-Gaussian Halo Bias from Single Field Inflation
• Scale-Dependent Non-Gaussianity as a Generalization of the Local Model
• Strongly scale-dependent polyspectra from curvaton self-interactions
• Negative spectral index of $f_{NL}$ in the axion-type curvaton model
• A Study of High-Order Non-Gaussianity with Applications to Massive Clusters and Large Voids
• First Constraints on Small-Scale Non-Gaussianity from UV Galaxy Luminosity Functions
• Computation of the Halo Mass Function Using Physical Collapse Parameters: Application to Non-Standard Cosmologies
• Constraining Scale-Dependent Non-Gaussianity with Future Large-Scale Structure and the CMB
• Non-Gaussian Halo Mass Function and Non-Spherical Halo Collapse: Theory vs. Simulations
• Testing Multi-Field Inflation with Galaxy Bias
• Scale dependence of $f_{NL}$ in N-flation
• Exploring the effects of primordial non-Gaussianity at galactic scales
• Angular Distribution of Clustersin Skewed CDM Models

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• Dark energy in light of the early JWST observations: case for a negative cosmological constant?
• Primordial power spectrum in light of JWST observations of high redshift galaxies
• Negative cosmological constant in the dark energy sector: tests from JWST photometric and spectroscopic observations of high-redshift galaxies
• A double take on early and interacting dark energy from JWST
• Alleviating the need for exponential evolution of JWST galaxies in 10${}^{10}{M}_{\odot }$ haloes at $z>10$ by a modified $\Lambda$CDM power spectrum
• Rapidly growing primordial black holes as seeds of the massive high-redshift JWST Galaxies
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• JWST high-z galaxy constraints on warm and cold dark matter models
• Cosmological Model Tests with JWST
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• Compatibility of JWST results with exotic halos
• Can primordial black holes explain the overabundance of bright super-early galaxies?
• Modelling the star-formation activity and ionizing properties of high-redshift galaxies
• Enhanced Early Galaxy Formation in JWST from Axion Dark Matter?
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• Fundamental Physics and Cosmology with TianQin
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• Primordial Black-Hole-Based Pathways to Little Red Dots
• Nonassicative cosmological solitonic R-flux deformations in gauge gravity and G. Perelman geometric flow thermodynamics
• Investigating cosmic strings using large-volume hydrodynamical simulations in the context of JWST's massive UV-bright galaxies
• Non-Gaussianities and Primordial Black Holes
• Nonmetric geometric flows and quasicrystalline topological phases for dark energy and dark matter in $f(Q)$ cosmology
• Can an Anti-de Sitter Vacuum in the Dark Energy Sector Explain JWST High-Redshift Galaxy and Reionization Observations?
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