Interacting Dark Matter disguised as Warm Dark Matter

Abstract

We explore some of the consequences of Dark Matter-photon interactions on structure formation, focusing on the evolution of cosmological perturbations and performing both an analytical and a numerical study. We compute the cosmic microwave background anisotropies and matter power spectrum in this class of models. We find, as the main result, that when Dark Matter and photons are coupled, Dark Matter perturbations can experience a new damping regime in addition to the usual collisional Silk damping effect. Such Dark Matter particles (having quite large photon interactions) behave like Cold Dark Matter or Warm Dark Matter as far as the cosmic microwave background anisotropies or matter power spectrum are concerned, respectively. These Dark Matter-photon interactions leave specific imprints at sufficiently small scales on both of these two spectra, which may allow to put new constraints on the acceptable photon-Dark Matter interactions. Under the conservative assumption that the abundance of 10^12 M_sol galaxies is correctly given by Cold Dark Matter, and without any knowledge of the abundance of smaller objects, we obtain the limit on the ratio of the Dark Matter-photon cross section to the Dark Matter mass sigma_{gamma-DM} / m_DM < 10^-6 sigma_Thomson / 100 GeV \sim 6 * 10^-33 cm^2 GeV^-1 .

14 pages, 5 figures, to appear in PRD

References in corpus (31)

• The Structure of Cold Dark Matter Halos
• Dark Matter Substructure in Galactic Halos
• Where are the missing galactic satellites?
• Observational evidence for self-interacting cold dark matter
• Halo Formation in Warm Dark Matter Models
• A measurement by BOOMERANG of multiple peaks in the angular power spectrum of the cosmic microwave background
• Observational and Theoretical Constraints on Singular Dark Matter Halos
• A New Dark Matter Candidate: Non-thermal Sterile Neutrinos
• DASI First Results: A Measurement of the Cosmic Microwave Background Angular Power Spectrum
• Sterile Neutrino Hot, Warm, and Cold Dark Matter
• CMB Anisotropies: Total Angular Momentum Method
• Substructure and halo density profiles in a Warm Dark Matter Cosmology
• Massive sterile neutrinos as warm Dark Matter
• A High Spatial Resolution Analysis of the MAXIMA-1 Cosmic Microwave Background Anisotropy Data
• Halo Properties in Cosmological Simulations of Self-Interacting Cold Dark Matter
• The Physics of Microwave Background Anisotropies
• Dynamical Friction and the Distribution of Dark Matter in Barred Galaxies
• Formation of Disk Galaxies: Warm Dark Matter and the Angular Momentum problem
• Constraining Dark Matter candidates from structure formation
• A Test of the Collisional Dark Matter Hypothesis from Cluster Lensing
• Lyman-alpha Forest Constraints on the Mass of Warm Dark Matter and the Shape of the Linear Power Spectrum
• Cuspy Dark-Matter Haloes and the Galaxy
• Constraints on Warm Dark Matter from Cosmological Reionization
• Non-Thermal Production of WIMPs and the Sub-Galactic Structure of the Universe
• Annihilating Cold Dark Matter
• Constraining the window on sterile neutrinos as warm dark matter
• Limits on Collisional Dark Matter from Elliptical Galaxies in Clusters
• Correlated mixtures of adiabatic and isocurvature cosmological perturbations
• Merger Histories in Warm Dark Matter Structure Formation Scenario
• Small Second Acoustic Peak from Interacting Cold Dark Matter?
• The Structure of Dark Matter Halos in an Annihilating Dark Matter Model

Cited by in corpus (108)

• Dark Matter Self-interactions and Small Scale Structure
• Constraining Warm Dark Matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-alpha forest
• Scalar Dark Matter candidates
• Galaxy Formation with BECDM: I. Turbulence and relaxation of idealised haloes
• Density Profiles of Cold Dark Matter Substructure: Implications for the Missing Satellites Problem
• ETHOS - An Effective Theory of Structure Formation: Dark matter physics as a possible explanation of the small-scale CDM problems
• ETHOS - An Effective Theory of Structure Formation: From dark particle physics to the matter distribution of the Universe
• Turning off the Lights: How Dark is Dark Matter?
• Dark Radiation constraints on minicharged particles in models with a hidden photon
• Reducing the $H_0$ and ${\sigma }_8$ tensions with Dark Matter-neutrino interactions
• Probing sub-GeV Dark Matter-Baryon Scattering with Cosmological Observables
• Constraints on Large-Scale Dark Acoustic Oscillations from Cosmology
• Constraints on Dark Matter interactions from structure formation: Damping lengths
• The Evolution of Substructure in Galaxy, Group and Cluster Haloes I: Basic Dynamics
• Constraining Dark Matter-Neutrino Interactions using the CMB and Large-Scale Structure
• Macro Dark Matter
• Local and Global Variations of The Fine Structure Constant
• Using the Milky Way satellites to study interactions between cold dark matter and radiation
• Cosmological bounds on dark matter-neutrino interactions
• Are small neutrino masses unveiling the missing mass problem of the Universe?
• Do We Need Stars to Reionize the Universe at High Redshifts? Early Reionization by Decaying Heavy Sterile Neutrinos
• Scattering, Damping, and Acoustic Oscillations: Simulating the Structure of Dark Matter Halos with Relativistic Force Carriers
• Using the CMB angular power spectrum to study Dark Matter-photon interactions
• Dark matter-neutrino interactions through the lens of their cosmological implications
• Probing the Small-Scale Matter Power Spectrum with Large-Scale 21-cm Data
• Thermal Dark Matter Through the Dirac Neutrino Portal
• Dark matter-radiation interactions: the impact on dark matter haloes
• Towards accurate cosmological predictions for rapidly oscillating scalar fields as dark matter
• Imaging Galactic Dark Matter with High-Energy Cosmic Neutrinos
• Evaporating the Milky Way halo and its satellites with inelastic self-interacting dark matter
• The diverse dark matter density at sub-kiloparsec scales in Milky Way satellites:implications for the nature of dark matter
• The Dark Matter equation of state through cosmic history
• Matter Power Spectrum in Hidden Neutrino Interacting Dark Matter Models: A Closer Look at the Collision Term
• Suppressing structure formation at dwarf galaxy scales and below: late kinetic decoupling as a compelling alternative to warm dark matter
• Dark matter-radiation interactions: the structure of Milky Way satellite galaxies
• Ruling out the light WIMP explanation of the galactic 511 keV line
• Observational constraints on dark matter scattering with electrons
• A fresh look into the interacting dark matter scenario
• Cosmological bounds on dark matter-photon coupling
• ETHOS -- an effective theory of structure formation: predictions for the high-redshift Universe -- abundance of galaxies and reionization
• Reannihilation of self-interacting dark matter
• On the Power Spectrum of Dark Matter Substructure in Strong Gravitational Lenses
• An extensive investigation of the Generalised Dark Matter model
• Dark Catalysis
• Gravitational Lensing and the Power Spectrum of Dark Matter Substructure: Insights from the ETHOS N-body Simulations
• The full Boltzmann hierarchy for dark matter-massive neutrino interactions
• Implications of Milky Way Substructures for the Nature of Dark Matter
• Electroweak Phase Transition with an SU(2) Dark Sector
• Dark Matter microphysics and 21 cm observations
• Constraints on warm dark matter from UV luminosity functions of high-z galaxies with Bayesian model comparison
• Probing the small-scale structure in strongly lensed systems via transdimensional inference
• Bose-Einstein Condensation, Dark Matter and Acoustic Peaks
• Beyond subhalos: Probing the collective effect of the Universe's small-scale structure with gravitational lensing
• The Effects of Dark Matter and Baryonic Physics on the Milky Way Subhalo Population in the Presence of the Large Magellanic Cloud
• Constraints on $\gamma$-CDM interactions matching the Planck data precision
• The baryonic mass-velocity relation; clues to feedback processes during structure formation and the cosmic baryon inventory
• Using CMB spectral distortions to distinguish between dark matter solutions to the small-scale crisis
• Comprehensive Study of Neutrino-Dark Matter Mixed Damping
• Wandering in the Lyman-alpha Forest: A Study of Dark Matter-Dark Radiation Interactions
• Radiative Model of Neutrino Mass with Neutrino Interacting MeV Dark Matter
• ETHOS - an Effective Theory of Structure Formation: detecting dark matter interactions through the Lyman-$\alpha$ forest
• Constraints on dark matter-neutrino scattering from the Milky-Way satellites and subhalo modeling for dark acoustic oscillations
• Constraints on the epoch of dark matter formation from Milky Way satellites
• ETHOS -- An effective parametrization and classification for structure formation: the non-linear regime at $z\gtrsim 5$
• Boltzmann-Fokker-Planck formalism for dark-matter--baryon scattering
• The impact of inelastic self-interacting dark matter on the dark matter structure of a Milky Way halo
• Astrophysical Tests of Dark Matter Self-Interactions
• Dark acoustic oscillations: Imprints on the matter power spectrum and the halo mass function
• Prior dependence of cosmological constraints on dark matter-radiation interactions
• The effect of dark matter-dark radiation interactions on halo abundance -- a Press-Schechter approach
• Late Kinetic Decoupling of Light Magnetic Dipole Dark Matter
• ETHOS - an effective theory of structure formation: formation of the first haloes and their stars
• Small scale clustering of late forming dark matter
• Ballistic Dark Matter oscillates above $\Lambda$CDM
• Probing dark matter interactions with 21cm observations
• COZMIC. I. Cosmological Zoom-in Simulations with Initial Conditions Beyond Cold Dark Matter
• Isotropic extragalactic flux from dark matter annihilations: lessons from interacting dark matter scenarios
• Investigation of CMB constraints for dark matter-helium scattering
• Cosmological constraints on the velocity-dependent baryon-dark matter coupling
• Probing galaxy density profiles with future supernova surveys
• Accretion of Dissipative Dark Matter onto Active Galactic Nuclei
• Time-delayed neutrino emission from supernovae as a probe of dark matter-neutrino interactions
• Constraints on Dark Matter-Photon Coupling in the Presence of Time-Varying Dark Energy
• Gravitational-wave event rates as a new probe for dark matter microphysics
• Structure Formation with Two Periods of Inflation: Beyond PLaIn $\Lambda$CDM
• Imprints of decaying dark matter on cosmic voids
• Is it Mixed dark matter or neutrino masses?
• XQC and CSR constraints on strongly interacting dark matter with spin and velocity dependent cross sections
• Trading kinetic energy: How late kinetic decoupling of dark matter changes $N_{\text{eff}}$
• Cosmic Birefringence from Neutrino and Dark Matter Asymmetries
• Science from an Ultra-Deep, High-Resolution Millimeter-Wave Survey
• The feasibility of constraining DM interactions with high-redshift observations by JWST
• A solution to the S8 tension through neutrino-dark matter interactions
• Testing $\Lambda$CDM With Dwarf Galaxy Morphology
• Estimating the dark matter velocity anisotropy to the cluster edge
• COZMIC. III. Cosmological Zoom-in Simulations of Self-interacting Dark Matter with Suppressed Initial Conditions
• CMB-HD: An Ultra-Deep, High-Resolution Millimeter-Wave Survey Over Half the Sky
• Fingerprint matching of beyond-WIMP dark matter: neural network approach
• Properties of subhalos in the interacting dark matter scenario
• Kinetic recoupling of dark matter
• Interacting light thermal-relic dark matter: self-consistent cosmological bounds
• A Physical Bias in Cosmological Simulations
• DESI forecast for Dark Matter-Neutrino interactions using EFTofLSS
• Probing Dark Sector Particles Coupling to Neutrinos with Double Beta Decay
• Constraining decaying dark matter models with gravitational lensing and cosmic voids
• 21 cm Cosmology Sensitivity to Small-Scale Structure: Warm vs Neutrino-Interacting Dark Matter
• Dark 2002 and Beyond
• Detecting a physical difference between the CDM halos in simulation and in nature