Can EDGES observation favour any dark matter model?

Rudakovskyi, Anton; Savchenko, Denys; Tsizh, Maksym

doi:10.1093/mnras/staa2194

Cited by 7 publications

(7 citation statements)

References 73 publications

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“…As a consequence of free-streaming, quantum pressure effects, and/or dark-sector interaction, all these scenarios produce a matter power spectrum suppressed on small-scales, less (sub)structures, and flatter inner density profiles within halos relative to CDM [36,59,68,78,107,112,113,125]. Indirect astrophysical constraints on the properties of such nonstandard DM scenarios, and especially of thermal WDM relics, have been obtained by investigating the Lyman-α forest [60,61,124], high-redshift galaxy counts [87,116], cosmic reionization [32,74], integrated 21cm data [22,31,33,109], γ-ray emission [24,51], fossil records of the Local Group [126,127], and Milky-Way satellite galaxies [63,93,96].…”

Section: Introductionmentioning

confidence: 99%

Astroparticle Constraints from Cosmic Reionization and Primordial Galaxy Formation

Lapi¹,

Ronconi²,

Boco³

et al. 2022

Preprint

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We derive astroparticle constraints in different dark matter scenarios alternative to cold dark matter (CDM): thermal relic warm dark matter, WDM; fuzzy dark matter, ψDM; self-interacting dark matter, SIDM; sterile neutrino dark matter, νDM. Our framework is based on updated determinations of the high-redshift UV luminosity functions for primordial galaxies out to redshift z ∼ 10, on redshift-dependent halo mass functions in the above DM scenarios from numerical simulations, and on robust constraints on the reionization history of the Universe from recent astrophysical and cosmological datasets. First, we build up an empirical model of cosmic reionization characterized by two parameters, namely the escape fraction f esc of ionizing photons from primordial galaxies, and the limiting UV magnitude M lim UV down to which the extrapolated UV luminosity functions are steeply increasing. Second, we perform standard abundance matching of the UV luminosity function and the halo mass function, obtaining a relationship between UV luminosity and halo mass whose shape depends on an astroparticle quantity X specific of each DM scenario (e.g., WDM particle mass); we exploit such a relation to introduce in the analysis a constraint from primordial galaxy formation, in terms of the threshold halo mass above which primordial galaxies can efficiently form stars. Third, we implement a sequential updating Bayesian MCMC technique to perform joint inference on the three parameters f esc , M lim UV , X, and to compare the outcomes of different DM scenarios on the reionization history. We also investigate the robustness of our findings against educated variations of still uncertain astrophysical quantities. Finally, we highlight the relevance of our astroparticle estimates in predicting the behavior of the high-redshift UV luminosity function at faint, yet unexplored magnitudes, that may be tested with the advent of the James Webb Space Telescope.

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Section: Introductionmentioning

confidence: 99%

Astroparticle Constraints from Cosmic Reionization and Primordial Galaxy Formation

Lapi¹,

Ronconi²,

Boco³

et al. 2022

Preprint

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“…Unfortunately, the 21 cm signal is very sensitive to uncertainties in the modelling of the Galactic foreground and in our understanding of the physics of star formation at early times. Therefore, the current data cannot constrain the properties of the DM [108][109][110]. Future studies of the statistics of the spatial distribution of the 21 cm signal and further work to understand stellar evolution at high redshift will overcome these difficulties [109,110].…”

Section: Jcap08(2021)062mentioning

confidence: 94%

“…Therefore, the current data cannot constrain the properties of the DM [108][109][110]. Future studies of the statistics of the spatial distribution of the 21 cm signal and further work to understand stellar evolution at high redshift will overcome these difficulties [109,110].…”

Section: Jcap08(2021)062mentioning

confidence: 94%

Constraints on the properties of warm dark matter using the satellite galaxies of the Milky Way

Newton

Leo²,

Cautun

et al. 2021

J. Cosmol. Astropart. Phys.

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The satellite galaxies of the Milky Way (MW) are effective probes of the underlying dark matter (DM) substructure, which is sensitive to the nature of the DM particle. In particular, a class of DM models have a power spectrum cut-off on the mass scale of dwarf galaxies and thus predict only small numbers of substructures below the cut-off mass. This makes the MW satellite system appealing to constrain the DM properties: feasible models must produce enough substructure to host the number of observed Galactic satellites. Here, we compare theoretical predictions of the abundance of DM substructure in thermal relic warm DM (WDM) models with estimates of the total satellite population of the MW. This produces conservative robust lower limits on the allowed mass, m th , of the thermal relic WDM particle. As the abundance of satellite galaxies depends on the MW halo mass, we marginalize over the corresponding uncertainties and rule out m th ≤ 2.02 keV at 95 percent confidence

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“…As a consequence of free-streaming, quantum pressure effects, and/or darksector interaction, all these scenarios produce a matter power spectrum suppressed on small scales, fewer (sub)structures, and flatter inner density profiles within halos relative to CDM [36][37][38][39][40][41][42][43]. Indirect astrophysical constraints on the properties of such nonstandard DM scenarios have been obtained by investigating the Lyman-α forest [44][45][46][47], high-redshift galaxy counts [48][49][50][51], γ-ray bursts [52,53], cosmic reionization [54][55][56][57][58], gravitational lensing [59,60], integrated 21 cm data [61][62][63][64], γ-ray emission [65,66], fossil records of the Local Group [67,68], dwarf galaxy profiles and scaling relations [69,70], and Milky Way satellite galaxies [71][72][73][74][75] or a combination of these [76].…”

Section: Introductionmentioning

confidence: 99%

Astroparticle Constraints from the Cosmic Star Formation Rate Density at High Redshift: Current Status and Forecasts for JWST

et al. 2022

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We exploit the recent determination of the cosmic star formation rate (SFR) density at high redshifts z≳4 to derive astroparticle constraints on three common dark matter (DM) scenarios alternative to standard cold dark matter (CDM): warm dark matter (WDM), fuzzy dark matter (ψDM) and self-interacting dark matter (SIDM). Our analysis relies on the ultraviolet (UV) luminosity functions measured from blank field surveys by the Hubble Space Telescope out to z≲10 and down to UV magnitudes MUV≲−17. We extrapolate these to fainter yet unexplored magnitude ranges and perform abundance matching with the halo mass functions in a given DM scenario, thus, obtaining a redshift-dependent relationship between the UV magnitude and the halo mass. We then computed the cosmic SFR density by integrating the extrapolated UV luminosity functions down to a faint magnitude limit MUVlim, which is determined via the above abundance matching relationship by two free parameters: the minimum threshold halo mass MHGF for galaxy formation, and the astroparticle quantity X characterizing each DM scenario (namely, particle mass for WDM and ψDM, and kinetic temperature at decoupling TX for SIDM). We perform Bayesian inference on such parameters using a Monte Carlo Markov Chain (MCMC) technique by comparing the cosmic SFR density from our approach to the current observational estimates at z≳4, constraining the WDM particle mass to mX≈1.2−0.4(−0.5)+0.3(11.3) keV, the ψDM particle mass to mX≈3.7−0.4(−0.5)+1.8(+12.9.3)×10−22 eV, and the SIDM temperature to TX≈0.21−0.06(−0.07)+0.04(+1.8) keV at 68% (95%) confidence level. Finally, we forecast how such constraints will be strengthened by upcoming refined estimates of the cosmic SFR density if the early data on the UV luminosity function at z≳10 from the James Webb Space Telescope (JWST) will be confirmed down to ultra-faint magnitudes.

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Can EDGES observation favour any dark matter model?

Cited by 7 publications

References 73 publications

Astroparticle Constraints from Cosmic Reionization and Primordial Galaxy Formation

Astroparticle Constraints from Cosmic Reionization and Primordial Galaxy Formation

Constraints on the properties of warm dark matter using the satellite galaxies of the Milky Way

Astroparticle Constraints from the Cosmic Star Formation Rate Density at High Redshift: Current Status and Forecasts for JWST

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