Reviving sub-keV warm dark matter: a UVLF-based analysis

Raymond T. Co, Siu Cheung Lam, Sai Chaitanya Tadepalli +1

Thermal warm dark matter (WDM) particles with $m_{\mathrm{WDM}}\le 1\mathrm{keV}$ are ruled out at more than $4\ddot{I}ƒ$ by multiple observational probes, owing to the strong suppression o…