Compatibility of JWST results with exotic halos

Abstract

The James Webb Space Telescope (JWST) is unveiling astounding results about the first few hundred million years of life of the Universe, delivering images of galaxies at very high redshifts. Here, we develop a UV luminosity function model for high-redshift galaxies, considering parameters such as the stellar formation rate, dust extinction, and halo mass function. Calibration of this luminosity function model using UV luminosity data at redshifts z = 4-7 yields optimal parameter values. Testing the model against data at higher redshifts reveals successful accommodation of the data at z = 8-9, but challenges emerge at z~13. Our findings suggest a negligible role of dust extinction at the highest redshifts, prompting a modification of the stellar formation rate to incorporate a larger fraction of luminous objects per massive halo, consistently with similar recent studies. This effect could be attributed to mundane explanations such as unknown evolution of standard astrophysics at high redshift or to the existence of exotic objects at high redshift. We comment on this latter possibility.

arXiv comment28 pages, 6 figures. Version consistent with the one accepted by the journal

References in corpus (79)

• Efficient Computation of CMB anisotropies in closed FRW models
• Cosmic Star Formation History
• The James Webb Space Telescope
• Dust Absorption And The Ultraviolet Luminosity Density At z \approx 3 As Calibrated By Local Starburst Galaxies
• The Large Scale Bias of Dark Matter Halos: Numerical Calibration and Model Tests
• The Evolution of the Galaxy Rest-Frame Ultraviolet Luminosity Function Over the First Two Billion Years
• A population of red candidate massive galaxies ~600 Myr after the Big Bang
• One Hundred First Stars : Protostellar Evolution and the Final Masses
• A Remarkably Luminous Galaxy at z=11.1 Measured with Hubble Space Telescope Grism Spectroscopy
• 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
• CEERS Key Paper I: An Early Look into the First 500 Myr of Galaxy Formation with JWST
• Two Remarkably Luminous Galaxy Candidates at $z\approx 10-12$ Revealed by JWST
• The evolution of the galaxy UV luminosity function at redshifts z ~ 8-15 from deep JWST and ground-based near-infrared imaging
• UV-Continuum Slopes of >4000 z~4-8 Galaxies from the HUDF/XDF, HUDF09, ERS, CANDELS-South, and CANDELS-North Fields
• A new multi-field determination of the galaxy luminosity function at z=7-9 incorporating the 2012 Hubble Ultra Deep Field imaging
• A dusty, normal galaxy in the epoch of reionization
• A Long Time Ago in a Galaxy Far, Far Away: A Candidate z ~ 12 Galaxy in Early JWST CEERS Imaging
• Early results from GLASS-JWST. III: Galaxy candidates at z$\sim$9-15
• Dust in the reionization era: ALMA observations of a $z$=8.38 Galaxy
• Stress Testing $\Lambda$CDM with High-redshift Galaxy Candidates
• Toy Models for Galaxy Formation versus Simulations
• Efficient Formation of Massive Galaxies at Cosmic Dawn by Feedback-Free Starbursts
• The Galaxy UV Luminosity Function Before the Epoch of Reionization
• Identification and properties of intense star-forming galaxies at redshifts z>10
• Discovery and properties of ultra-high redshift galaxies ($9<z<12$) in the JWST ERO SMACS 0723 Field
• Natural Downsizing in Hierarchical Galaxy Formation
• "Big Three Dragons": a z = 7.15 Lyman BreakGalaxy Detected in [OIII] 88 $\mu$m, [CII] 158 $\mu$m, and Dust Continuum with ALMA
• Dark matter and the first stars: a new phase of stellar evolution
• On the stunning abundance of super-early, massive galaxies revealed by JWST
• Revealing Galaxy Candidates out to $z\sim 16$ with JWST Observations of the Lensing Cluster SMACS0723
• The HDUV Survey: A Revised Assessment of the Relationship between UV Slope and Dust Attenuation for High-Redshift Galaxies
• Detection of the Far-infrared [O III] and Dust Emission in a Galaxy at Redshift 8.312: Early Metal Enrichment in the Heart of the Reionization Era
• The brightest galaxies at Cosmic Dawn
• Extreme Value Statistics of the Halo and Stellar Mass Distributions at High Redshift: are JWST Results in Tension with ΛCDM?
• The accretion history of dark matter halos I: The physical origin of the universal function
• Accelerating early massive galaxy formation with primordial black holes
• A Lower Bound of Star Formation Activity in Ultra-high Redshift Galaxies Detected with JWST: Implications for Stellar Populations and Radiation Sources
• First Batch of Candidate Galaxies at Redshifts 11 to 20 Revealed by the James Webb Space Telescope Early Release Observations
• The ultraviolet continuum slopes ($\beta$) of galaxies at $\mathbf{z}\simeq 8-16$ from JWST and ground-based near-infrared imaging
• A Search for H-Dropout Lyman Break Galaxies at z~12-16
• Astrophysical Effects of Scalar Dark Matter Miniclusters
• A merger in the dusty, $z=7.5$ galaxy A1689-zD1?
• Dark energy in light of the early JWST observations: case for a negative cosmological constant?
• Has JWST already falsified dark-matter-driven galaxy formation?
• The MillenniumTNG Project: The galaxy population at $z\ge 8$
• Dark Matter capture and annihilation on the First Stars: preliminary estimates
• Early results from GLASS-JWST. XI: Stellar masses and mass-to-light ratio of z>7 galaxies
• Clustering and Halo Abundances in Early Dark Energy Cosmological Models
• Blue Monsters. Why are JWST super-early, massive galaxies so blue?
• Did JWST observe imprints of axion miniclusters or primordial black holes?
• Primordial power spectrum in light of JWST observations of high redshift galaxies
• Supermassive Dark Stars: Detectable in JWST
• Dark Stars: A Review
• Constraining the physical properties of the first lensed $z\sim 10-16$ galaxy candidates with JWST
• Dark Matter Capture in the First Stars: a Power Source and Limit on Stellar Mass
• Physical Characterization of Early Galaxies in the Webb's First Deep Field SMACS J0723.3-7323
• Evolution of the First Stars with Dark Matter Burning
• CLASH: z ~ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7-4431
• The luminosity and stellar mass functions of GRB host galaxies: Insight into the metallicity bias
• Finding high-redshift dark stars with the James Webb Space Telescope
• TheHaloMod: An online calculator for the halo model
• High-redshift JWST Observations and Primordial Non-Gaussianity
• Supermassive Dark Star candidates seen by JWST?
• Observing Dark Stars with JWST
• WIMP DM and first stars: suppression of fragmentation in primordial star formation
• Primordial Black Holes from CDM Isocurvature Perturbations
• Modeling the JWST high-redshift galaxies with a general formation scenario and the consistency with the $\Lambda$CDM model
• Young Galaxy Candidates in the Hubble Frontier Fields IV. MACS J1149.5+2223
• Effects of stellar-mass primordial black holes on first star formation
• The WIMP capture process for dark stars in the early universe
• Clustering dark energy and halo abundances
• Dark Stars: Improved Models and First Pulsation Results
• No Tension: JWST Galaxies at $z>10$ Consistent with Cosmological Simulations
• Massive Dark Matter Halos at High Redshift: Implications for Observations in the JWST Era
• The build-up of halos within Press-Schechter theory
• Effect of dark matter annihilation on gas cooling and star formation
• Dark Stars Powered by Self-Interacting Dark Matter
• Growing the First Galaxies' Merger Trees
• Stability and pulsation of the first dark stars

Cited by in corpus (13)

• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Negative cosmological constant in the dark energy sector: tests from JWST photometric and spectroscopic observations of high-redshift galaxies
• Explanation of high redshift luminous galaxies from JWST by early dark energy model
• Can Dark Stars account for the star formation efficiency excess at very high redshifts?
• Matching JWST UV Luminosity Functions with Refined $\Lambda$CDM Halo Models
• High-redshift Galaxies from JWST Observations in More Realistic Dark Matter Halo Models
• Structure Formation with Warm White Noise: Effects of Finite Number Density and Velocity Dispersion in Particle and Wave Dark Matter
• Stringent constraint on the CCC+TL cosmology with $H(z)$ Measurements
• Do JWST reionization (optical depth) puzzle, cosmological tensions, and CMB anomalies imply Harrison-Zel'dovich spectrum?
• Dark energy, spatial curvature, and star formation efficiency from JWST photometric and spectroscopic high-redshift galaxies
• Dark Secrets of Baryons: Illuminating Dark Matter-Baryon Interactions with JWST
• Supermassive Dark Stars and their remnants as a possible solution to three recent cosmic dawn puzzles
• Microscopic primordial black holes as macroscopic dark matter from large extra dimensions