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Open AccessJournal ArticleDOI

Updated neutrino mass constraints from galaxy clustering and CMB lensing-galaxy cross-correlation measurements

TLDR
In this paper , the authors revisited cosmological constraints on the sum of neutrino masses from a combination of full-shape BOSS galaxy clustering [$P(k)$] data and measurements of the cross-correlation between Planck Cosmic Microwave Background (CMB) lensing convergence and bOSS galaxy overdensity maps [C^{\kappa \text{g}}_{\ell}$], using a simple but theoretically motivated model for the scale-dependent galaxy bias in auto-and cross correlation measurements.
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This article is published in Journal of High Energy Astrophysics.The article was published on 2022-07-01 and is currently open access. It has received 23 citations till now. The article focuses on the topics: Cosmic microwave background & Planck.

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Restoring cosmological concordance with early dark energy and massive neutrinos?

TL;DR: In this paper , the authors explore whether freeing the total neutrino mass, which can suppress small-scale structure growth, improves EDE's fit to galaxy clustering, and they find that the baseline EDE model (with $M_{ u}=0.06\,{\rm eV}$) provides the overall best fit.
Journal ArticleDOI

Updating non-standard neutrinos properties with Planck-CMB data and full-shape analysis of BOSS and eBOSS galaxies

TL;DR: In this article , the authors reported the observational constraints on the cosmic neutrino properties given by the extended ΛCDM scenario: Λ CDM + N eff + ∑ mν, c 2 eff + c 2 vis + ξν , where N eff, ∑mν,c 2 eff, c2 vis, ξn are the effective number of species, the total neutrinos mass, the sound speed in the neutRinos rest frame, the viscosity parameter and the degeneracy parameter quantifying a cosmological leptonic asymmetry, respectively.
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DEMNUni: comparing nonlinear power spectra prescriptions in the presence of massive neutrinos and dynamical dark energy

TL;DR: In this paper , the authors provide an accurate comparison, against large cosmological N-body simulations, of different prescriptions for modelling nonlinear matter power spectra in the presence of massive neutrinos and dynamical dark energy.
Journal ArticleDOI

Excess of lensing amplitude in the Planck CMB power spectrum

TL;DR: In this paper , the spectrum difference obtained as the difference of the measured Planck CMB angular power spectrum (APS) and the Planck best-fit ΛCDM APS model was investigated.
Journal ArticleDOI

Massive neutrino self-interactions and inflation

TL;DR: In this article , a massive neutrino self-interaction with a heavy mediator was implemented in both scalar and tensor perturbation equations of neutrinos.
References
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Journal ArticleDOI

Inference from Iterative Simulation Using Multiple Sequences

TL;DR: The focus is on applied inference for Bayesian posterior distributions in real problems, which often tend toward normal- ity after transformations and marginalization, and the results are derived as normal-theory approximations to exact Bayesian inference, conditional on the observed simulations.
Journal ArticleDOI

Detection of the baryon acoustic peak in the large-scale correlation function of SDSS luminous red galaxies

Daniel J. Eisenstein, +51 more
TL;DR: In this paper, a large-scale correlation function measured from a spectroscopic sample of 46,748 luminous red galaxies from the Sloan Digital Sky Survey is presented, which demonstrates the linear growth of structure by gravitational instability between z ≈ 1000 and the present and confirms a firm prediction of the standard cosmological theory.
Journal ArticleDOI

Efficient computation of CMB anisotropies in closed FRW models

TL;DR: In this paper, an efficient line-of-sight method was implemented to calculate the anisotropy and polarization of the cosmic microwave background for scalar and tensor modes in almost Friedmann-Robertson-Walker models with positive spatial curvature.
Journal ArticleDOI

First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results

Abstract: We present full sky microwave maps in five bands (23 to 94 GHz) from the WMAP first year sky survey. Calibration errors are 1 per mode to l=658. The temperature-polarization cross-power spectrum reveals both acoustic features and a large angle correlation from reionization. The optical depth of reionization is 0.17 +/- 0.04, which implies a reionization epoch of 180+220-80 Myr (95% CL) after the Big Bang at a redshift of 20+10-9 (95% CL) for a range of ionization scenarios. This early reionization is incompatible with the presence of a significant warm dark matter density. The age of the best-fit universe is 13.7 +/- 0.2 Gyr old. Decoupling was 379+8-7 kyr after the Big Bang at a redshift of 1089 +/- 1. The thickness of the decoupling surface was dz=195 +/- 2. The matter density is Omega_m h^2 = 0.135 +0.008 -0.009, the baryon density is Omega_b h^2 = 0.0224 +/- 0.0009, and the total mass-energy of the universe is Omega_tot = 1.02 +/- 0.02. The spectral index of scalar fluctuations is fit as n_s = 0.93 +/- 0.03 at wavenumber k_0 = 0.05 Mpc^-1, with a running index slope of dn_s/d ln k = -0.031 +0.016 -0.018 in the best-fit model. This flat universe model is composed of 4.4% baryons, 22% dark matter and 73% dark energy. The dark energy equation of state is limited to w<-0.78 (95% CL). Inflation theory is supported with n_s~1, Omega_tot~1, Gaussian random phases of the CMB anisotropy, and superhorizon fluctuations. An admixture of isocurvature modes does not improve the fit. The tensor-to-scalar ratio is r(k_0=0.002 Mpc^-1)<0.90 (95% CL).
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Strong detection of the CMB lensing and galaxy weak lensing cross-correlation from ACT-DR4, Planck Legacy, and KiDS-1000

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