Secondorder Cosmological Perturbations Engendered by Pointlike Masses
Abstract
In the ΛCDM framework, presenting nonrelativistic matter inhomogeneities as discrete massive particles, we develop the second‐order cosmological perturbation theory. Our approach relies on the weak gravitational field limit. The derived equations for the second‐order scalar, vector, and tensor metric corrections are suitable at arbitrary distances, including regions with nonlinear contrasts of the matter density. We thoroughly verify fulfillment of all Einstein equations, as well as self‐consistency of order assignments. In addition, we achieve logical positive results in the Minkowski background limit. Feasible investigations of the cosmological backreaction manifestations by means of relativistic simulations are also outlined.
 Authors:
 Institute for Astro and Particle Physics, University of Innsbruck, Technikerstrasse 25/8, A‐6020 Innsbruck (Austria)
 North Carolina Central University, CREST and NASA Research Centers, 1801 Fayetteville St., Durham, NC 27707 (United States)
 Publication Date:
 OSTI Identifier:
 22663154
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Astrophysical Journal; Journal Volume: 845; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ALLOCATIONS; CORRECTIONS; DENSITY; DISTURBANCES; EINSTEIN FIELD EQUATIONS; GRAVITATIONAL FIELDS; MASS; MINKOWSKI SPACE; NONLUMINOUS MATTER; PERTURBATION THEORY; RELATIVISTIC RANGE; SIMULATION; UNIVERSE
Citation Formats
Brilenkov, Ruslan, and Eingorn, Maxim, Email: ruslan.brilenkov@gmail.com, Email: maxim.eingorn@gmail.com. Secondorder Cosmological Perturbations Engendered by Pointlike Masses. United States: N. p., 2017.
Web. doi:10.3847/15384357/AA81CD.
Brilenkov, Ruslan, & Eingorn, Maxim, Email: ruslan.brilenkov@gmail.com, Email: maxim.eingorn@gmail.com. Secondorder Cosmological Perturbations Engendered by Pointlike Masses. United States. doi:10.3847/15384357/AA81CD.
Brilenkov, Ruslan, and Eingorn, Maxim, Email: ruslan.brilenkov@gmail.com, Email: maxim.eingorn@gmail.com. 2017.
"Secondorder Cosmological Perturbations Engendered by Pointlike Masses". United States.
doi:10.3847/15384357/AA81CD.
@article{osti_22663154,
title = {Secondorder Cosmological Perturbations Engendered by Pointlike Masses},
author = {Brilenkov, Ruslan and Eingorn, Maxim, Email: ruslan.brilenkov@gmail.com, Email: maxim.eingorn@gmail.com},
abstractNote = {In the ΛCDM framework, presenting nonrelativistic matter inhomogeneities as discrete massive particles, we develop the second‐order cosmological perturbation theory. Our approach relies on the weak gravitational field limit. The derived equations for the second‐order scalar, vector, and tensor metric corrections are suitable at arbitrary distances, including regions with nonlinear contrasts of the matter density. We thoroughly verify fulfillment of all Einstein equations, as well as self‐consistency of order assignments. In addition, we achieve logical positive results in the Minkowski background limit. Feasible investigations of the cosmological backreaction manifestations by means of relativistic simulations are also outlined.},
doi = {10.3847/15384357/AA81CD},
journal = {Astrophysical Journal},
number = 2,
volume = 845,
place = {United States},
year = 2017,
month = 8
}

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