DIFFERENT APPROACHES FOR DARK MATTER HALOS OF CLUSTERS OF GALAXIES

To describe the density profile of dark matter halos of clusters of galaxies, we compare the approach based on the Schwarzschild-de Sitter metric with a recentlydeveloped mechanical one (discrete cosmology inside the cell of uniformity). In the first approach, the cosmological effects are completely...

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Main Authors: R. Brilenkov, M. Eingorn, A. Zhuk
Format: Article
Language:English
Published: Odessa I. I. Mechnykov National University 2014-10-01
Series:Odessa Astronomical Publications
Subjects:
Online Access:http://oap.onu.edu.ua/article/view/80751
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author R. Brilenkov
M. Eingorn
A. Zhuk
author_facet R. Brilenkov
M. Eingorn
A. Zhuk
author_sort R. Brilenkov
collection DOAJ
description To describe the density profile of dark matter halos of clusters of galaxies, we compare the approach based on the Schwarzschild-de Sitter metric with a recentlydeveloped mechanical one (discrete cosmology inside the cell of uniformity). In the first approach, the cosmological effects are completely incorporated into the cosmologicalconstant, while in the second one the scale factor enters directly the corresponding equations. Hence, in the latter case we can take into account the effect on the density profiles not only the cosmological constant, but also other material components. Thus, we can evaluate how thisdynamic impact is considerable and testable.
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spelling doaj.art-23cc7e4f33b44bdba45c8548a4ef22e12022-12-22T01:45:16ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152014-10-0127110.18524/1810-4215.2014.27.8075180751DIFFERENT APPROACHES FOR DARK MATTER HALOS OF CLUSTERS OF GALAXIESR. Brilenkov0M. Eingorn1A. Zhuk2Department of Theoretical Physics, Odessa National UniversityCREST and NASA research centers, North Carolina Central UniversityAstronomical Observatory, Odessa National UniversityTo describe the density profile of dark matter halos of clusters of galaxies, we compare the approach based on the Schwarzschild-de Sitter metric with a recentlydeveloped mechanical one (discrete cosmology inside the cell of uniformity). In the first approach, the cosmological effects are completely incorporated into the cosmologicalconstant, while in the second one the scale factor enters directly the corresponding equations. Hence, in the latter case we can take into account the effect on the density profiles not only the cosmological constant, but also other material components. Thus, we can evaluate how thisdynamic impact is considerable and testable.http://oap.onu.edu.ua/article/view/80751dark mattergalaxy cluster
spellingShingle R. Brilenkov
M. Eingorn
A. Zhuk
DIFFERENT APPROACHES FOR DARK MATTER HALOS OF CLUSTERS OF GALAXIES
Odessa Astronomical Publications
dark matter
galaxy cluster
title DIFFERENT APPROACHES FOR DARK MATTER HALOS OF CLUSTERS OF GALAXIES
title_full DIFFERENT APPROACHES FOR DARK MATTER HALOS OF CLUSTERS OF GALAXIES
title_fullStr DIFFERENT APPROACHES FOR DARK MATTER HALOS OF CLUSTERS OF GALAXIES
title_full_unstemmed DIFFERENT APPROACHES FOR DARK MATTER HALOS OF CLUSTERS OF GALAXIES
title_short DIFFERENT APPROACHES FOR DARK MATTER HALOS OF CLUSTERS OF GALAXIES
title_sort different approaches for dark matter halos of clusters of galaxies
topic dark matter
galaxy cluster
url http://oap.onu.edu.ua/article/view/80751
work_keys_str_mv AT rbrilenkov differentapproachesfordarkmatterhalosofclustersofgalaxies
AT meingorn differentapproachesfordarkmatterhalosofclustersofgalaxies
AT azhuk differentapproachesfordarkmatterhalosofclustersofgalaxies