Enhanced Early Galaxy Formation in JWST from Axion Dark Matter?

Abstract

We demonstrate that enhanced early galaxy formation can generically arise in axion-like particle (ALP) dark matter (DM) models with a delayed onset of axion field oscillation. In these models, the formation of localized massive objects enhances structure formation, potentially addressing the excess recently observed by the James Webb Space Telescope (JWST), while remaining consistent with existing constraints. We identify viable parameter space with the ALP mass in the range of $10^{-22}\mathrm{eV}<m_a<10^{-19}\mathrm{eV}$. In addition, we show that the ALP parameter regions of interest can lead to intriguing complementary signatures in the small-scale structure of DM halos and existing experimental searches for ALPs.

6 pages, 4 figures

References in corpus (38)

• The James Webb Space Telescope
• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
• A population of red candidate massive galaxies ~600 Myr after the Big Bang
• Discovering the QCD Axion with Black Holes and Gravitational Waves
• A Comprehensive Study on Galaxies at z~9-16 Found in the Early JWST Data: UV Luminosity Functions and Cosmic Star-Formation History at the Pre-Reionization Epoch
• Revisiting the SN1987A gamma-ray limit on ultralight axion-like particles
• A Long Time Ago in a Galaxy Far, Far Away: A Candidate z ~ 12 Galaxy in Early JWST CEERS Imaging
• Revealing Galaxy Candidates out to $z\sim 16$ with JWST Observations of the Lensing Cluster SMACS0723
• The brightest galaxies at Cosmic Dawn
• Essential physics of early galaxy formation
• Extreme Value Statistics of the Halo and Stellar Mass Distributions at High Redshift: are JWST Results in Tension with ΛCDM?
• Accelerating early massive galaxy formation with primordial black holes
• Boson Stars and Oscillatons: A Review
• Oscillons and Quasi-breathers in the ϕ^4 Klein-Gordon model
• Balancing the efficiency and stochasticity of star formation with dust extinction in z > 10 galaxies observed by JWST
• Astrophysical Effects of Scalar Dark Matter Miniclusters
• Has JWST already falsified dark-matter-driven galaxy formation?
• Gravitational Wave and CMB Probes of Axion Kination
• First-order Phase Transition interpretation of PTA signal produces solar-mass Black Holes
• Did JWST observe imprints of axion miniclusters or primordial black holes?
• First Light And Reionisation Epoch Simulations (FLARES) V: The redshift frontier
• New Roads to the Small-Scale Universe: Measurements of the Clustering of Matter with the High-Redshift UV Galaxy Luminosity Function
• High-redshift JWST Observations and Primordial Non-Gaussianity
• Structure of Axion Miniclusters
• How Late can the Dark Matter form in our universe?
• Effects of the Axion Through the Higgs Portal on Primordial Gravitational Waves During the Electroweak Breaking
• Primordial Black Holes from CDM Isocurvature Perturbations
• Fuzzy Dark Matter as a Solution to Reconcile the Stellar Mass Density of High-z Massive Galaxies and Reionization History
• Effects of stellar-mass primordial black holes on first star formation
• ALP Dark Matter Mini-Clusters from Kinetic Fragmentation
• Clustering dark energy and halo abundances
• Self-gravitating oscillons and new critical behavior
• QCD Axion Kinetic Misalignment without Prejudice
• Strong lensing constraints on primordial black holes as a dark matter candidate
• Growing the First Galaxies' Merger Trees
• Self-Interacting Dark Matter from Gravitational Scattering
• ALP Dark Matter from Kinetic Fragmentation: Opening up the Parameter Window

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• Can an Anti-de Sitter Vacuum in the Dark Energy Sector Explain JWST High-Redshift Galaxy and Reionization Observations?
• Matching JWST UV Luminosity Functions with Refined $\Lambda$CDM Halo Models
• Can Dark Stars account for the star formation efficiency excess at very high redshifts?
• High-redshift Galaxies from JWST Observations in More Realistic Dark Matter Halo Models
• Dark energy, spatial curvature, and star formation efficiency from JWST photometric and spectroscopic high-redshift galaxies