Unveiling Dark Matter free-streaming at the smallest scales with high redshift Lyman-alpha forest

Abstract

This study introduces novel constraints on the free-streaming of thermal relic warm dark matter (WDM) from Lyman-$\alpha$ forest flux power spectra. Our analysis utilises a high-resolution, high-redshift sample of quasar spectra observed using the HIRES and UVES spectrographs ($z=4.2-5.0$). We employ a Bayesian inference framework and a simulation-based likelihood that encompasses various parameters including the free-streaming of dark matter, cosmological parameters, the thermal history of the intergalactic medium, and inhomogeneous reionization, to establish lower limits on the mass of a thermal relic WDM particle of $5.7\mathrm{keV}$ (at 95\% C.L.). This result surpasses previous limits from the Lyman-$\alpha$ forest through reduction of the measured uncertainties due to a larger statistical sample and by measuring clustering to smaller scales ($k_{\max }=0.2\mathrm{k}{\mathrm{m}}^{-1}\mathrm{s}$). The approximately two-fold improvement due to the expanded statistical sample suggests that the effectiveness of Lyman-$\alpha$ forest constraints on WDM models at high redshifts are limited by the availability of high-quality quasar spectra. Restricting the analysis to comparable scales and thermal history priors as in prior studies ($k_{\max }<0.1\mathrm{k}{\mathrm{m}}^{-1}\mathrm{s}$) lowers the bound on the WDM mass to $4.1\mathrm{keV}$. As the precision of the measurements increases, it becomes crucial to examine the instrumental and modelling systematics. On the modelling front, we argue that the impact of the thermal history uncertainty on the WDM particle mass constraint has diminished due to improved independent observations. At the smallest scales, the primary source of modeling systematic arises from the structure in the peculiar velocity of the intergalactic medium and inhomogeneous reionization.

arXiv comment22 pages, 14 figures, 2 tables; published in PRD on Feb 8 2024

References in corpus (65)

• The cosmological simulation code GADGET-2
• Halo Formation in Warm Dark Matter Models
• Constraining Warm Dark Matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-alpha forest
• Warm Dark Matter as a solution to the small scale crisis: new constraints from high redshift Lyman-alpha forest data
• Equation of State of the Photoionized Intergalactic Medium
• Cosmological implications of baryon acoustic oscillation (BAO) measurements
• Cosmological parameters from combining the Lyman-alpha forest with CMB, galaxy clustering and SN constraints
• New Constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman-$\alpha$ forest data
• Cold dark matter: controversies on small scales
• First constraints on fuzzy dark matter from Lyman-$\alpha$ forest data and hydrodynamical simulations
• Substructure and halo density profiles in a Warm Dark Matter Cosmology
• Probing the Universe with the Lyman-alpha Forest: I. Hydrodynamics of the Low Density IGM
• A White Paper on keV Sterile Neutrino Dark Matter
• The Linear Theory Power Spectrum from the Lyman-alpha Forest in the Sloan Digital Sky Survey
• The Physics of the Intergalactic Medium
• The Evolution of the Intergalactic Medium
• Detection of Extended He II Reionization in the Temperature Evolution of the Intergalactic Medium
• Strong bound on canonical ultra-light axion dark matter from the Lyman-alpha forest
• Hydrogen reionisation ends by $z=5.3$: Lyman-$\alpha$ optical depth measured by the XQR-30 sample
• Inferring the dark matter power spectrum from the Lyman-alpha forest in high-resolution QSO absorption spectra
• Warm dark matter chills out: constraints on the halo mass function and the free-streaming length of dark matter with 8 quadruple-image strong gravitational lenses
• Large Lyman-alpha opacity fluctuations and low CMB tau in models of late reionization with large islands of neutral hydrogen extending to z<5.5
• The one-dimensional Ly-alpha forest power spectrum from BOSS
• The Lyman-alpha forest opacity and the metagalactic hydrogen ionization rate at z~2-4
• New constraints on Lyman-α opacity with a sample of 62 quasars at z > 5.7
• The Lyman-$\alpha$ forest in optically-thin hydrodynamical simulations
• Lyman-alpha Forest Constraints on the Mass of Warm Dark Matter and the Shape of the Linear Power Spectrum
• A Refined Measurement of the Mean Transmitted Flux in the Ly-alpha Forest over 2 < z < 5 Using Composite Quasar Spectra
• SHARP -- VII. New constraints on the dark matter free-streaming properties and substructure abundance from gravitationally lensed quasars
• Consistent modelling of the meta-galactic UV background and the thermal/ionization history of the intergalactic medium
• Constraints on neutrino masses from Lyman-alpha forest power spectrum with BOSS and XQ-100
• Long troughs in the Lyman-$\alpha$ forest below redshift 6 due to islands of neutral hydrogen
• The Sherwood simulation suite: overview and data comparisons with the Lyman-alpha forest at redshifts 2 < z < 5
• Constraints from Ly-$\alpha$ forests on non-thermal dark matter including resonantly-produced sterile neutrinos
• Revealing reionization with the thermal history of the intergalactic medium: new constraints from the Lyman-$\alpha$ flux power spectrum
• Probing the thermal state of the intergalactic medium at $z>5$ with the transmission spikes in high-resolution Ly$\alpha$ forest spectra
• Joint constraints on thermal relic dark matter from strong gravitational lensing, the Lyman-$\alpha$ forest, and Milky Way satellites
• The photoheating of the intergalactic medium in synthesis models of the UV background
• A consistent and robust measurement of the thermal state of the IGM at $2\le z\le 4$ from a large sample of Ly$\alpha$ forest spectra: Evidence for late and rapid HeII reionization
• New Constraints on Warm Dark Matter from the Lyman-$\alpha$ Forest Power Spectrum
• How to constrain warm dark matter with the Lyman $\alpha$ forest
• The Lyman-alpha forest power spectrum from the XQ-100 Legacy Survey
• Resolving the high redshift Lyman-alpha forest in smoothed particle hydrodynamics simulations
• The impact of feedback from galaxy formation on the Lyman-alpha transmitted flux
• On Estimating Lyman-alpha Forest Correlations between Multiple Sightlines
• The Lyman-$\alpha$ forest as a diagnostic of the nature of the dark matter
• Probing the nature of dark matter particles with stellar streams
• A short mean free path at $z=6$ favors late and rapid reionization by faint galaxies
• The Sherwood-Relics simulations: overview and impact of patchy reionization and pressure smoothing on the intergalactic medium
• A New Precision Measurement of the Small-Scale Line-of-Sight Power Spectrum of the Ly$\alpha$ Forest
• Inference of the optical depth to reionization from low multipole temperature and polarisation Planck data
• Inferring the IGM thermal history during reionisation with the Lyman-$\alpha$ forest power spectrum at redshift $z\simeq 5$
• Recovery of the Shape of the Mass Power Spectrum from the Lyman-alpha Forest
• Inhomogeneous Reionization Models in Cosmological Hydrodynamical Simulations
• Optimal 1D Ly$\alpha$ Forest Power Spectrum Estimation -- II. KODIAQ, SQUAD & XQ-100
• Inferring the Thermal History of the Intergalactic Medium from the Properties of the Hydrogen and Helium Lyman-alpha Forest
• The effect of inhomogeneous reionisation on the Lyman-$\alpha$ forest power spectrum at redshift $z>4$: implications for thermal parameter recovery
• Neutrino mass bounds from confronting an effective model with BOSS Lyman-alpha data
• Absorber Model: the Halo-like model for the Lyman-alpha forest
• On the accuracy of common moment-based radiative transfer methods for simulating reionization
• Possible evidence for a large-scale enhancement in the Lyman-$\alpha$ forest power spectrum at redshift $\text{z}\ge 4$
• A measurement of the Lyman-beta forest power spectrum and its cross with the Lyman-alpha forest in X-Shooter XQ-100
• Constraining IGM enrichment and metallicity with the C IV forest correlation function
• A framework to measure the properties of intergalactic metal systems with two-point flux statistics
• Background power subtraction in Lyman-alpha forest

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• Dark Matter Freeze-In and Small-Scale Observables: Novel Mass Bounds and Viable Particle Candidates
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• Bridging Simulations and EFT: A Hybrid Model of the Lyman-Alpha Forest Field
• Structure Formation under Inelastic Two-Component Dark Matter: Halo Statistics and Matter Power Spectra in the High-$z$ Universe
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