Constraining dark photons and their connection to 21 cm cosmology with CMB data
arXiv:2002.08942 · doi:10.1016/j.physletb.2020.135420
Abstract
In the inhomogeneous Universe, the cosmological conversion of dark photons into ordinary photons (and vice versa) may happen at a great number of resonance redshifts. This alters the CMB observed energy spectrum and degree of small-scale anisotropies. We utilize results from the EAGLE simulation to obtain the conversion probability along random line-of-sights to quantify these effects. We then apply our results to the case where dark photons are sourced by dark matter decay and their high-redshift conversion into ordinary photons modify the global 21 cm signal expected from the cosmic dawn era. Concretely, we show that a significant portion of the parameter space for which a converted population of photons in the Rayleigh-Jeans tail of the CMB explains the absorption strength observed by EDGES, is ruled out from the brightness temperature measurements of COBE/FIRAS and the CMB anisotropy measurements of Planck and SPT.
arXiv comment9 pages, 7 figures; numerical bug in Fig. 6 fixed; conclusions unchanged; references added
References in corpus (36)
- The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
- The Cosmic Microwave Background Spectrum from the Full COBE/FIRAS Data Set
- Cosmology at Low Frequencies: The 21 cm Transition and the High-Redshift Universe
- The EAGLE simulations of galaxy formation: calibration of subgrid physics and model variations
- The Temperature of the Cosmic Microwave Background
- An absorption profile centred at 78 megahertz in the sky-averaged spectrum
- WISPy Cold Dark Matter
- A New Calculation of the Recombination Epoch
- Possible interaction between baryons and dark-matter particles revealed by the first stars
- Vector Dark Matter from Inflationary Fluctuations
- How exactly did the Universe become neutral?
- Dark Light, Dark Matter and the Misalignment Mechanism
- ARCADE 2 Measurement of the Extra-Galactic Sky Temperature at 3-90 GHz
- Constraining Dark Matter-Baryon Scattering with Linear Cosmology
- Relic Abundance of Dark Photon Dark Matter
- Enhanced global signal of neutral hydrogen due to excess radiation at cosmic dawn
- Severely Constraining Dark Matter Interpretations of the 21-cm Anomaly
- Signs of Dark Matter at 21-cm?
- Modeling the Radio Background from the First Black Holes at Cosmic Dawn: Implications for the 21 cm Absorption Amplitude
- Probing sub-GeV Dark Matter-Baryon Scattering with Cosmological Observables
- Constraining Baryon--Dark Matter Scattering with the Cosmic Dawn 21-cm Signal
- Constraints on scattering of keV--TeV dark matter with protons in the early Universe
- New Physics in the Rayleigh-Jeans Tail of the CMB
- Reviving Millicharged Dark Matter for 21-cm Cosmology
- The EDGES 21 cm Anomaly and Properties of Dark Matter
- The Cosmological Evolution of Light Dark Photon Dark Matter
- Dark Photon Oscillations in Our Inhomogeneous Universe
- Bounds on Dark Matter annihilations from 21 cm data
- Green's function of the cosmological thermalization problem
- Green's function of the cosmological thermalization problem II: effect of photon injection and constraints
- The Aurora radiation-hydrodynamical simulations of reionization: calibration and first results
- Misalignment & Co.: (Pseudo-)scalar and vector dark matter with curvature couplings
- Heating up the Galaxy with Hidden Photons
- Signatures of Dark Radiation in Neutrino and Dark Matter Detectors
- Complete Reionization Constraints from Planck 2015 Polarization
- Bounds on Ultra-Light Hidden-Photon Dark Matter from 21cm at Cosmic Dawn
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- Spectral distortion constraints on photon injection from low-mass decaying particles
- Dark Photon Dark Matter in the Presence of Inhomogeneous Structure
- Modeling Dark Photon Oscillations in Our Inhomogeneous Universe
- Effective photon mass and (dark) photon conversion in the inhomogeneous Universe
- Magnetization of the intergalactic medium in the IllustrisTNG simulations: the importance of extended, outflow-driven bubbles
- Constraints on dark matter to dark radiation conversion in the late universe with DES-Y1 and external data
- A cosmologically consistent millicharged dark matter solution to the EDGES anomaly of possible string theory origin
- A Stimulating Explanation of the Extragalactic Radio Background
- Edges and Endpoints in 21-cm Observations from Resonant Photon Production
- Dark photon superradiance quenched by dark matter
- Shaping Dark Photon Spectral Distortions
- A closer look at dark photon explanations of the excess radio background
- A strong broadband 21 cm cosmological signal from dark matter spin-flip interactions
- Detectability of large correlation length inflationary magnetic field with Cherenkov telescopes
- view of the sunrise: Boosting helioscopes with angular information
- Probing self-interacting ultrahigh-energy neutrinos with the cosmic 21-cm signal
- Particle physics and cosmology intertwined