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- W2155976193 abstract "We present constraints on the mass of warm dark matter (WDM) particles derived from the Lyman-alpha flux power spectrum of 55 high-resolution HIRES spectra at 2.0<z<6.4. From the HIRES spectra, we obtain a lower limit of m(WDM) > or approximately 1.2 keV (2sigma) if the WDM consists of early decoupled thermal relics and m(WDM) > or approximately 5.6 keV (2sigma) for sterile neutrinos. Adding the Sloan Digital Sky Survey Lyman-alpha flux power spectrum, we get m(WDM) > or approximately 4 keV and m(WDM) > or approximately 28 keV (2sigma) for thermal relics and sterile neutrinos. These results improve previous constraints by a factor of 2." @default.
- W2155976193 created "2016-06-24" @default.
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- W2155976193 date "2008-01-29" @default.
- W2155976193 modified "2023-10-07" @default.
- W2155976193 title "How Cold Is Cold Dark Matter? Small-Scales Constraints from the Flux Power Spectrum of the High-Redshift Lyman-<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>α</mml:mi></mml:math>Forest" @default.
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- W2155976193 doi "https://doi.org/10.1103/physrevlett.100.041304" @default.
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