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Title: Higher order relativistic galaxy number counts: dominating terms

Abstract

We review the number counts to second order concentrating on the terms which dominate on sub horizon scales. We re-derive the result for these terms and compare it with the different versions found in the literature. We generalize our derivation to higher order terms, especially the third order number counts which are needed to compute the 1-loop contribution to the power spectrum.

Authors:
 [1];  [2]
  1. Niels Bohr International Academy, Blegdamsvej 17, Copenhagen 2100 (Denmark)
  2. University of Geneva, Department of Theoretical Physics and Center for Astroparticle Physics, 24 quai E. Ansermet, CH-1211 Geneva 4 (Switzerland)
Publication Date:
OSTI Identifier:
22679991
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 03; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COMPARATIVE EVALUATIONS; GALAXIES; RELATIVISTIC RANGE; SPECTRA

Citation Formats

Nielsen, Jeppe TrØst, and Durrer, Ruth, E-mail: Jeppe.Trost@nbi.dk, E-mail: Ruth.Durrer@unige.ch. Higher order relativistic galaxy number counts: dominating terms. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/03/010.
Nielsen, Jeppe TrØst, & Durrer, Ruth, E-mail: Jeppe.Trost@nbi.dk, E-mail: Ruth.Durrer@unige.ch. Higher order relativistic galaxy number counts: dominating terms. United States. doi:10.1088/1475-7516/2017/03/010.
Nielsen, Jeppe TrØst, and Durrer, Ruth, E-mail: Jeppe.Trost@nbi.dk, E-mail: Ruth.Durrer@unige.ch. Wed . "Higher order relativistic galaxy number counts: dominating terms". United States. doi:10.1088/1475-7516/2017/03/010.
@article{osti_22679991,
title = {Higher order relativistic galaxy number counts: dominating terms},
author = {Nielsen, Jeppe TrØst and Durrer, Ruth, E-mail: Jeppe.Trost@nbi.dk, E-mail: Ruth.Durrer@unige.ch},
abstractNote = {We review the number counts to second order concentrating on the terms which dominate on sub horizon scales. We re-derive the result for these terms and compare it with the different versions found in the literature. We generalize our derivation to higher order terms, especially the third order number counts which are needed to compute the 1-loop contribution to the power spectrum.},
doi = {10.1088/1475-7516/2017/03/010},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 03,
volume = 2017,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}