Results 1 to 10 of about 556,485 (362)
Warm Dark Matter in Simulations [PDF]
Universe, 2022 In recent years, warm dark matter models have been studied as a viable alternative to the cold dark matter models. The warm dark matter particle properties are expected to imprint distinct signatures on the structure formation at both large and small ...
Sinziana Paduroiu
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Warm dark matter from a gravitational freeze-in in extra dimensions [PDF]
Journal of High Energy Physics, 2023 We study the freeze-in of gravitationally interacting dark matter in extra dimensions. Focusing on a minimal dark matter candidate that only interacts with the SM via gravity in a five-dimensional model we find that a large range of dark matter and ...
A. de Giorgi, S. Vogl
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Warm dark matter constraints from the JWST [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Warm Dark Matter (WDM) particles with masses (∼ kilo electronvolt) offer an attractive solution to the small-scale issues faced by the Cold Dark Matter (CDM) paradigm. The delay of structure formation in WDM models and the associated dearth of low-mass
Pratika Dayal, Sambit K. Giri
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New Galaxy UV Luminosity Constraints on Warm Dark Matter from JWST [PDF]
The Astrophysical JournalWe exploit the recent James Webb Space Telescope (JWST) determination of galaxy UV luminosity functions over the redshift range z = 9–14.5 to derive constraints on warm dark matter (WDM) models. The delayed structure formations in WDM universes make high-
Bin Liu, Huanyuan Shan, Jiajun Zhang
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Quantum Statistical Effects on Warm Dark Matter and the Mass Constraint from the Cosmic Structure at Small Scales [PDF]
The Astrophysical Journal LettersThe suppression of the small-scale matter power spectrum is a distinct feature of warm dark matter (WDM), which permits a constraint on the WDM mass from galaxy surveys. In the thermal relic WDM scenario, quantum statistical effects are not manifest.
Zhijian Zhang, Weikang Lin
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New Bounds for the Mass of Warm Dark Matter Particles Using Results from Fermionic King Model [PDF]
Universe, 2021 After reviewing several aspects about the thermodynamics of self-gravitating systems that undergo the evaporation (escape) of their constituents, some recent results obtained in the framework of fermionic King model are applied here to the analysis of ...
Luisberis Velazquez
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The Epoch of Reionization in Warm Dark Matter Scenarios [PDF]
Universe, 2021 In this paper we investigate how the Reionization process is affected by early galaxy formation in different cosmological scenarios. We use a semi-analytic model with suppressed initial power spectra to obtain the UV Luminosity Function in thermal Warm ...
Massimiliano Romanello +2 more
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Impact of Warm Dark Matter on the Cosmic Neutrino Background Anisotropies [PDF]
Universe, 2022 The Cosmic Neutrino Background (CνB) anisotropies for massive neutrinos are a unique probe of large-scale structure formation. The redshift-distance measure is completely different for massive neutrinos as compared to electromagnetic radiation.
Christopher G. Tully, Gemma Zhang
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Star Stream Velocity Distributions in Cold Dark Matter and Warm Dark Matter Galactic Halos
The Astrophysical JournalThe dark matter subhalos orbiting in a galactic halo perturb the orbits of stars in thin stellar streams. Over time, the random velocities in the streams develop non-Gaussian wings.
Raymond G. Carlberg +3 more
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Can We Constrain Warm Dark Matter Masses with Individual Galaxies?
The Astrophysical JournalWe study the impact of warm dark matter (WDM) mass on the internal properties of individual galaxies using a large suite of 1024 state-of-the-art cosmological hydrodynamic simulations from the DREAMS project.
Shurui Lin +11 more
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