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Title: Imprints of local lightcone \ projection effects on the galaxy bispectrum. Part II

Abstract

General relativistic imprints on the galaxy bispectrum arise from observational (or projection) effects. The lightcone projection effects include local contributions from Doppler and gravitational potential terms, as well as lensing and other integrated contributions. We recently presented for the first time, the correction to the galaxy bispectrum from all local lightcone projection effects up to second order in perturbations. Here we provide the details underlying this correction, together with further results and illustrations. For moderately squeezed shapes, the correction to the Newtonian prediction is ∼ 30% on equality scales at z ∼ 1. We generalise our recent results to include the contribution, up to second order, of magnification bias (which affects some of the local terms) and evolution bias.

Authors:
; ; ;  [1]
  1. Department of Physics and Astronomy, University of the Western Cape, Cape Town 7535 (South Africa)
Publication Date:
OSTI Identifier:
22667669
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 09; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CORRECTIONS; DISTURBANCES; DOPPLER EFFECT; GALACTIC EVOLUTION; GALAXIES; GRAVITATIONAL LENSES; LIGHT CONE; PERTURBATION THEORY; RELATIVISTIC RANGE; SPECTRA

Citation Formats

Jolicoeur, Sheean, Umeh, Obinna, Maartens, Roy, and Clarkson, Chris, E-mail: beautifulheart369@gmail.com, E-mail: umeobinna@gmail.com, E-mail: roy.maartens@gmail.com, E-mail: chris.clarkson@qmul.ac.uk. Imprints of local lightcone \ projection effects on the galaxy bispectrum. Part II. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/09/040.
Jolicoeur, Sheean, Umeh, Obinna, Maartens, Roy, & Clarkson, Chris, E-mail: beautifulheart369@gmail.com, E-mail: umeobinna@gmail.com, E-mail: roy.maartens@gmail.com, E-mail: chris.clarkson@qmul.ac.uk. Imprints of local lightcone \ projection effects on the galaxy bispectrum. Part II. United States. doi:10.1088/1475-7516/2017/09/040.
Jolicoeur, Sheean, Umeh, Obinna, Maartens, Roy, and Clarkson, Chris, E-mail: beautifulheart369@gmail.com, E-mail: umeobinna@gmail.com, E-mail: roy.maartens@gmail.com, E-mail: chris.clarkson@qmul.ac.uk. Fri . "Imprints of local lightcone \ projection effects on the galaxy bispectrum. Part II". United States. doi:10.1088/1475-7516/2017/09/040.
@article{osti_22667669,
title = {Imprints of local lightcone \ projection effects on the galaxy bispectrum. Part II},
author = {Jolicoeur, Sheean and Umeh, Obinna and Maartens, Roy and Clarkson, Chris, E-mail: beautifulheart369@gmail.com, E-mail: umeobinna@gmail.com, E-mail: roy.maartens@gmail.com, E-mail: chris.clarkson@qmul.ac.uk},
abstractNote = {General relativistic imprints on the galaxy bispectrum arise from observational (or projection) effects. The lightcone projection effects include local contributions from Doppler and gravitational potential terms, as well as lensing and other integrated contributions. We recently presented for the first time, the correction to the galaxy bispectrum from all local lightcone projection effects up to second order in perturbations. Here we provide the details underlying this correction, together with further results and illustrations. For moderately squeezed shapes, the correction to the Newtonian prediction is ∼ 30% on equality scales at z ∼ 1. We generalise our recent results to include the contribution, up to second order, of magnification bias (which affects some of the local terms) and evolution bias.},
doi = {10.1088/1475-7516/2017/09/040},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 09,
volume = 2017,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 2017},
month = {Fri Sep 01 00:00:00 EDT 2017}
}