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… 

Inferring high-redshift large-scale structure dynamics from the Lyman-αforest

One of the major science goals over the coming decade is to test fundamental physics with probes of the cosmic large-scale structure out to high redshift. Here we present a fully Bayesian approach to

The Sejong Suite: Cosmological Hydrodynamical Simulations with Massive Neutrinos, Dark Radiation, and Warm Dark Matter

  • G. Rossi
  • Physics
    The Astrophysical Journal Supplement Series
  • 2020
We present the Sejong Suite, an extensive collection of state-of-the-art high-resolution cosmological hydrodynamical simulations spanning a variety of cosmological and astrophysical parameters,

New Constraints on IGM Thermal Evolution from the Lyα Forest Power Spectrum

We determine the thermal evolution of the intergalactic medium (IGM) over 3 Gyr of cosmic time by comparing measurements of the Lyα forest power spectrum to a suite of ∼70 hydrodynamical simulations.

UV background fluctuations and three-point correlations in the large-scale clustering of the Lyman α forest

Using the Lyman α (Lyα) Mass Association Scheme, we make theoretical predictions for the three-dimensional three-point correlation function (3PCF) of the Lyα forest at redshift z = 2.3. We

A hierarchical field-level inference approach to reconstruction from sparse Lyman-α forest data

We address the problem of inferring the three-dimensional matter distribution from a sparse set of one-dimensional quasar absorption spectra of the Lyman-α forest. Using a Bayesian forward modelling

Snowmass2021 Cosmic Frontier White Paper: Prospects for obtaining Dark Matter Constraints with DESI

Monica Valluri1, Solene Chabanier2, Vid Iršič3,4, Eric Armengaud5, Michael Walther6,7, Connie Rockosi8, Miguel A. Sánchez-Conde9, Leandro Beraldo e Silva1, Andrew P. Cooper10, Elise Darragh-Ford11,

References

SHOWING 1-10 OF 105 REFERENCES

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

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

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

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

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

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

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

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

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
...