Neutrino and HDM wakes provide a smoking-gun signature of free-streaming effects in large-scale structure that cannot be mimicked by dynamical dark energy, detectable at high SNR in idealistic 3D HDM tracer maps for k_fs,0 ≳ 0.1 Mpc^{-1} when HDM is ~1% of total dark matter.
Relaxing Cosmological Neutrino Mass Bounds with Unstable Neutrinos.JHEP, 12:119
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Dark winds on the horizon: Prospects for detecting neutrino and hot dark matter wakes in large-scale structure
Neutrino and HDM wakes provide a smoking-gun signature of free-streaming effects in large-scale structure that cannot be mimicked by dynamical dark energy, detectable at high SNR in idealistic 3D HDM tracer maps for k_fs,0 ≳ 0.1 Mpc^{-1} when HDM is ~1% of total dark matter.