Imprint of non-linear effects on HI intensity mapping on large scales

DOI10.1088/1475-7516/2017/06/005OpenAlexW3105710492WikidataQ63391032 ScholiaQ63391032MaRDI QIDQ5024195

Obinna Umeh

Publication date: 28 January 2022

Published in: Journal of Cosmology and Astroparticle Physics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1611.04963

zbMATH Keywords

power spectrumcosmological perturbation theory

Mathematics Subject Classification ID

Relativity and gravitational theory (83-XX)

Related Items (5)

The galaxy bias at second order in general relativity with non-Gaussian initial conditions ⋮ Testing the equivalence principle on cosmological scales using the odd multipoles of galaxy cross-power spectrum and bispectrum ⋮ Optimal computation of anisotropic galaxy three point correlation function multipoles using 2DFFTLOG formalism ⋮ The effect of finite halo size on the clustering of neutral hydrogen ⋮ Detecting the relativistic bispectrum in 21cm intensity maps

Uses Software

• xPand

Cites Work

• Large-scale structure of the universe and cosmological perturbation theory
• xPand  : an algorithm for perturbing homogeneous cosmologies
• Nonlinear relativistic corrections to cosmological distances, redshift and gravitational lensing magnification: I. Key results
• Nonlinear relativistic corrections to cosmological distances, redshift and gravitational lensing magnification: II. Derivation
• Higher order relativistic galaxy number counts: dominating terms
• A general relativistic signature in the galaxy bispectrum: the local effects of observing on the lightcone

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