# Impact of Massive Neutrinos and Dark Radiation on the High-redshift Cosmic Web. I. Lyα Forest Observables

@article{Rossi2017ImpactOM,
title={Impact of Massive Neutrinos and Dark Radiation on the High-redshift Cosmic Web. I. Ly$\alpha$ Forest Observables},
author={Graziano Rossi},
journal={The Astrophysical Journal Supplement Series},
year={2017},
volume={233}
}
• G. Rossi
• Published 1 December 2017
• Physics
• The Astrophysical Journal Supplement Series
With upcoming high-quality data from surveys such as the Extended Baryon Oscillation Spectroscopic Survey or the Dark Energy Spectroscopic Instrument, improving the theoretical modeling and gaining a deeper understanding of the effects of neutrinos and dark radiation on structure formation at small scales are necessary, to obtain robust constraints free from systematic biases. Using a novel suite of hydrodynamical simulations that incorporate dark matter, baryons, massive neutrinos, and dark…
6 Citations

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## References

SHOWING 1-10 OF 105 REFERENCES

### Suite of hydrodynamical simulations for the Lyman-α forest with massive neutrinos

• Physics
• 2014
The signature left in quasar spectra by neutral hydrogen in the Universe allows constraining the sum of the neutrino masses with a better sensitivity than laboratory experiments and may shed new

### Physical effects involved in the measurements of neutrino masses with future cosmological data

• Physics
• 2016
Future Cosmic Microwave Background experiments together with upcoming galaxy and 21-cm surveys will provide extremely accurate measurements of different cosmological observables located at different

### Neutrino masses and cosmology with Lyman-alpha forest power spectrum

• Physics
• 2015
We present constraints on neutrino masses, the primordial fluctuation spectrum from inflation, and other parameters of the ΛCDM model, using the one-dimensional Lyα-forest power spectrum measured by

### Cosmology with massive neutrinos I: towards a realistic modeling of the relation between matter, haloes and galaxies

• Physics
• 2013
By using a suite of large box-size N-body simulations that incorporate massive neutrinos as an extra set of particles, with total masses of 0.15, 0.30, and 0.60 eV, we investigate the impact of

### COSMOLOGY WITH MASSIVE NEUTRINOS: CHALLENGES TO THE STANDARD ΛCDM PARADIGM

Determining the absolute neutrino mass scale and the neutrino mass hierarchy are central goals in particle physics, with important implications for the Standard Model. However, the nal answer may

### The effect of neutrinos on the matter distribution as probed by the intergalactic medium

• Physics
• 2010
We present a suite of full hydrodynamical cosmological simulations that quantitatively address the impact of neutrinos on the (mildly non-linear) spatial distribution of matter and in particular on

### Constraint on neutrino masses from SDSS-III/BOSS Lyα forest and other cosmological probes

• Physics
• 2014
We present constraints on the parameters of the ΛCDM cosmological model in the presence of massive neutrinos, using the one-dimensional Lyα forest power spectrum obtained with the Baryon Oscillation

### The separate and combined effects of baryon physics and neutrino free-streaming on large-scale structure

• Physics
• 2017
We use the cosmo-OWLS and BAHAMAS suites of cosmological hydrodynamical simulations to explore the separate and combined effects of baryon physics (particularly feedback from active galactic nuclei,

### Present bounds on the relativistic energy density in the Universe from cosmological observables

• Physics
• 2007
We discuss the present bounds on the relativistic energy density in the Universe parametrized in terms of the effective number of neutrinos Nνeff using the most recent cosmological data on cosmic