Influence of the cosmological constant on the motion of Magellanic Clouds in the gravitational field of Milky Way

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F11%3A%230003873" target="_blank" >RIV/47813059:19240/11:#0003873 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1475-7516/2011/09/018" target="_blank" >http://dx.doi.org/10.1088/1475-7516/2011/09/018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1475-7516/2011/09/018" target="_blank" >10.1088/1475-7516/2011/09/018</a>

Result language
angličtina
Original language name
Influence of the cosmological constant on the motion of Magellanic Clouds in the gravitational field of Milky Way
Original language description
Using the pseudo-Newtonian (RN) potential reflecting properties of the Schwarzschild-de Sitter spacetime, we estimate the influence of the repulsive cosmological constant Lambda similar to 1.3 x 10(-56)cm(-2) implied by recent cosmological tests onto themotion of both Small and Large Magellanic Clouds (SMC and LMC) in the gravitational field of the Milky Way. Considering detailed modelling of the gravitational field of the Galaxy disc, bulge and cold dark matter halo, the trajectories of SMC and LMC constructed for the PN potential with the cosmological constant are confronted to those given for Lambda = 0. In the realistic model of the extended cold dark matter halo its edge and related total mass are taken at typical values reflecting recent diversity in the total Galaxy mass estimates. In all cases, strong influence of the cosmological constant, on 10% level or higher, has been found for motion of both SMC and LMC. Inside the halo, the Newtonian part of the PN potential is exact en
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Project
<a href="/en/project/LC06014" target="_blank" >LC06014: Center for Theoretical Astrophysics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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