New constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman-α forest data

This is the authors' abstract. We don't add key points for this paper.

Using data on the Lyman-{α} spectra obtained by the X-shooter and HIRES/MIKE spectrographs, bounds on warm dark matter are computed using state-of-the-art analysis. This places a new best lower limit of 5.3 keV on the mass of thermal relic dark matter.