Comparison of general relativistic and pseudo-newtonian description of magellanic-clouds motion in the field of milky way

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F12%3A%230004519" target="_blank" >RIV/47813059:19240/12:#0004519 - isvavai.cz</a>

Result on the web

<a href="http://www.worldscientific.com/doi/pdf/10.1142/S0218271812500319" target="_blank" >http://www.worldscientific.com/doi/pdf/10.1142/S0218271812500319</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1142/S0218271812500319" target="_blank" >10.1142/S0218271812500319</a>

Result language

angličtina

Original language name

Comparison of general relativistic and pseudo-newtonian description of magellanic-clouds motion in the field of milky way

Original language description

We test precision of the Cosmological Paczynski-Wiita (CPW) potential eflecting properties of the Schwarzschild-de Sitter (SdS) spacetimes in modeling dynamical phenomena related to galaxy motion. We consider a simplified model of Magellanic Clouds moving in the field of Milky Way as test particles. Time evolution of their position along trajectories obtained in the CPW framework using the notion of Newtonian time is compared to the one obtained in the fully general relativistic (GR) approach when the time evolution is expressed in terms of time related to the location of Earth in the Galaxy field. The differences in the position-evolution of the Magellanic Clouds obtained in the CPW and GR approaches are given for appropriately chosen values of the Milky Way mass. It is shown that the integrated relativistic corrections represent ~10^-5 part of the Newtonian CPW predictions for the orbital characteristics of the motion and slightly grow with Galaxy mass growing, being at least by one

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Modern Physics D

ISSN

0218-2718

e-ISSN

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Volume of the periodical

21

Issue of the periodical within the volume

4

Country of publishing house

SG - SINGAPORE

Number of pages

32

Pages from-to

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UT code for WoS article

000303201900001

EID of the result in the Scopus database

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