How to constrain warm dark matter with the Lyman forest
arXiv:1912.09397 · doi:10.1093/mnras/stab192
Abstract
The flux power spectrum of the high resolution Lyman- forest data exhibits suppression at small scales. The origin of this suppression can be due to long-sought warm dark matter (WDM) or to thermal effects, related to the largely unknown reionization history of the Universe. Previous works explored a specific class of reionization histories that exhibit sufficiently strong thermal supression and leave little room for warm dark matter interpretation. In this work we choose a different class of reionization histories, fully compatible with available data on evolution of reionization, but much colder then the reionization histories used by previous authors in determining the nature of dark matter, thus leaving the broadest room for the WDM interpretation of the suppression in the flux power spectrum. We find that WDM thermal relics with masses below 1.9 keV (95% CL) would produce a suppression at scales that are larger than observed maximum of the flux power spectrum, independently of assumptions about thermal effects. This WDM mass is significantly lower than previously claimed bounds, demonstrating the level of systematic uncertainty of the Lyman- forest method, due to the previous modelling. We also discuss how this uncertainty may affect also data at large scales measured by eBOSS.
arXiv comment8 pages, 6 figures
References in corpus (55)
- Planck 2015 results. XIII. Cosmological parameters
- The cosmological simulation code GADGET-2
- The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
- Radiative transfer in a clumpy universe: IV. New synthesis models of the cosmic UV/X-ray background
- Halo Formation in Warm Dark Matter Models
- Evidence for Reionization at z ~ 6: Detection of a Gunn-Peterson Trough in a z=6.28 Quasar
- 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
- New Constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman- forest data
- Evidence of patchy hydrogen reionization from an extreme Ly trough below redshift six
- Lyman-alpha constraints on warm and on warm-plus-cold dark matter models
- Probing the Universe with the Lyman-alpha Forest: I. Hydrodynamics of the Low Density IGM
- The thermal history of the intergalactic medium
- Can sterile neutrinos be the dark matter?
- The Physics of the Intergalactic Medium
- Detection of Extended He II Reionization in the Temperature Evolution of the Intergalactic Medium
- The Evolution of Optical Depth in the Ly-alpha Forest: Evidence Against Reionization at z~6
- Can sterile neutrinos be ruled out as warm dark matter candidates?
- The Thermal Memory of Reionization History
- Lyman-alpha Forests cool Warm Dark Matter
- How cold is cold dark matter? Small scales constraints from the flux power spectrum of the high-redshift Lyman-alpha forest
- Milky Way Satellite Census. II. Galaxy--Halo Connection Constraints Including the Impact of the Large Magellanic Cloud
- Realistic sterile neutrino dark matter with keV mass does not contradict cosmological bounds
- SHARP -- VII. New constraints on the dark matter free-streaming properties and substructure abundance from gravitationally lensed quasars
- Large-scale Bias and Efficient Generation of Initial Conditions for Non-Local Primordial Non-Gaussianity
- New Constraints on IGM Thermal Evolution from the Lyα Forest Power Spectrum
- The one-dimensional power spectrum from the SDSS DR14 Ly forests
- Constraints from Ly- 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- flux power spectrum
- Large Fluctuations in the High-Redshift Metagalactic Ionizing Background
- Constraining the window on sterile neutrinos as warm dark matter
- Evidence of Gunn-Peterson damping wings in high-z quasar spectra: strengthening the case for incomplete reionization
- Probing the thermal state of the intergalactic medium at with the transmission spikes in high-resolution Ly forest spectra
- Improved measurements of the intergalactic medium temperature around quasars: possible evidence for the initial stages of He-II reionisation at z~6
- Self-Consistent Modeling of Reionization in Cosmological Hydrodynamical Simulations
- Broadening of QSO Lyman-alpha forest absorbers
- Models of the Thermal Evolution of the Intergalactic Medium After Reionization
- Cutoff in the Lyman- forest power spectrum: warm IGM or warm dark matter?
- Novel constraints on non-cold (non-thermal) Dark Matter from Lyman- forest data
- Characterizing the Pressure Smoothing Scale of the Intergalactic Medium
- A first direct measurement of the intergalactic medium temperature around a quasar at z=6
- The Lyman- forest as a diagnostic of the nature of the dark matter
- A New Precision Measurement of the Small-Scale Line-of-Sight Power Spectrum of the Ly Forest
- The b Distribution and the Velocity Structure of Absorption Peaks in the Lyman-Alpha Forest
- Hints, neutrino bounds and WDM constraints from SDSS DR14 Lyman- and Planck full-survey data
- Constraining Reionization with the Lyman- Forest Power Spectrum: the Outlook after Planck
- Imprints of temperature fluctuations on the Lyman- forest: a view from radiation-hydrodynamic simulations of reionization
- A new Measurement of the Intergalactic Temperature at
- Sample variance and Lyman-alpha forest transmission statistics
- On Modeling and Measuring the Temperature of the z~5 IGM
- Inhomogeneous HeII reionization in Hydrodynamic Simulations
- The broadening of Lyman-alpha forest absorption lines
- How do galactic winds affect the Lyalpha forest?
- Measuring the temperature and profiles of Lyman- absorbers
- Jeans smoothing of the Ly forest absorption lines
Cited by in corpus (52)
- The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
- New Constraints on Warm Dark Matter from the Lyman- Forest Power Spectrum
- Constraining new physics with SModelS version 2
- Unveiling Dark Matter free-streaming at the smallest scales with high redshift Lyman-alpha forest
- Evaporation of Primordial Black Holes in the Early Universe: Mass and Spin Distributions
- Redshift Effects in Particle Production from Kerr Primordial Black Holes
- Scalar Dark Matter Production from Preheating and Structure Formation Constraints
- Dark Matter and Gravity Waves from a Dark Big Bang
- Cogenesis of Baryon Asymmetry and Gravitational Dark Matter from Primordial Black Holes
- A new life for sterile neutrino dark matter after the pandemic
- Coupling Metric-Affine Gravity to the Standard Model and Dark Matter Fermions
- PRIYA: A New Suite of Lyman-alpha Forest Simulations for Cosmology
- Cosmological Constraints from the eBOSS Lyman- Forest using the PRIYA Simulations
- Global view of neutrino interactions in cosmology: The freestreaming window as seen by Planck
- The effect of inhomogeneous reionisation on the Lyman- forest power spectrum at redshift : implications for thermal parameter recovery
- Wave Dark Matter and Ultra Diffuse Galaxies
- Dark matter produced from right-handed neutrinos
- The 21-cm forest as a simultaneous probe of dark matter and cosmic heating history
- Isocurvature Constraints on Scalar Dark Matter Production from the Inflaton
- Inferring Astrophysics and Dark Matter Properties from 21cm Tomography using Deep Learning
- Experimental targets for dark photon dark matter
- Einstein-Proca theory from the Einstein-Cartan formulation
- Inflection-point Inflation and Dark Matter Redux
- Neutrino astronomy as a probe of physics beyond the Standard Model: decay of sub-MeV - gauge boson dark matter
- A Multi-Fidelity Emulator for the Lyman- Forest Flux Power Spectrum
- Massive prompt cusps: A new signature of warm dark matter
- Freeze-In of radiative keV-scale neutrino dark matter from a new
- Dark matter self-interactions in the matter power spectrum
- Revisiting GeV-scale annihilating dark matter with the AMS-02 positron fraction
- Constraining Mixed Dark Matter models with high redshift Lyman-alpha forest data
- Deep learning-driven likelihood-free parameter inference for 21-cm forest observations
- Irreducible cosmological backgrounds of a real scalar with a broken symmetry
- Ultraviolet freeze-in baryogenesis
- Dark Matter Freeze-In and Small-Scale Observables: Novel Mass Bounds and Viable Particle Candidates
- New Source for QCD Axion Dark Matter Production: Curvature Induced
- Constraining Hot Dark Matter Sub-Species with Weak Lensing and the Cosmic Microwave Background Radiation
- Lognormal semi-numerical simulations of the Lyman- forest: comparison with full hydrodynamic simulations
- Baryogenesis in a Parity Solution to the Strong CP Problem
- Freezing-in Cannibal Dark Sectors
- Phasing out of Darkness: From Sterile Neutrino Dark Matter to Neutrino Masses via Time-Dependent Mixing
- GLIMPSE: Graphene-based super-Light Invisible Matter Particle SEarch
- Testable dark matter solution within the seesaw mechanism
- Impact of Dark Sector Preheating on CMB Observables
- Differentiating Warm Dark Matter Models through 21cm Line Intensity Mapping: A Convolutional Neural Network Approach
- Linearity: galaxy formation encounters an unanticipated empirical relation
- Post-inflationary Leptogenesis and Dark Matter production: Metric versus Palatini formalism
- Impact of astrophysical effects on the dark matter mass constraint with 21cm intensity mapping
- Analytical modeling of the one-dimensional power spectrum of 21-cm forest based on a halo model method
- Opening up New Parameter Space for Sterile Neutrino Dark Matter
- The Higgs boson, naturalness, and the Universe
- Milky Way Satellite Census. IV. Constraints on Decaying Dark Matter from Observations of Milky Way Satellite Galaxies
- Freeze-in Dark Matter via Lepton Portal: Hubble Tension and Stellar Cooling