# Efficient computation of galaxy bias with neutrinos and other relics

@article{Muoz2018EfficientCO,
title={Efficient computation of galaxy bias with neutrinos and other relics},
author={Julian B. Mu{\~n}oz and Cora Dvorkin},
journal={Physical Review D},
year={2018}
}
• Published 29 May 2018
• Physics
• Physical Review D
Cosmological data can be used to search for---and characterize---light particles in the standard model, if these populate our Universe. In addition to the well-known effect of these light relics in the background cosmology, usually parametrized through a change in the effective number $N_{\rm eff}$ of neutrino species, these particles can become nonrelativistic at later times, affecting the growth of matter fluctuations due to their thermal velocities. An extensively studied example is that of…

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