SCHEE, Jan and Zdeněk STUCHLÍK. Comparison of general relativistic and pseudo-newtonian description of magellanic-clouds motion in the field of milky way. International Journal of Modern Physics D. SG - Singapurská republika, 2012, Internatio, No 4, 32 pp. ISSN 0218-2718. Available from: https://dx.doi.org/10.1142/S0218271812500319.
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Basic information
Original name Comparison of general relativistic and pseudo-newtonian description of magellanic-clouds motion in the field of milky way
Authors SCHEE, Jan and Zdeněk STUCHLÍK.
Edition International Journal of Modern Physics D, SG - Singapurská republika, 2012, 0218-2718.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Confidentiality degree is not subject to a state or trade secret
WWW www
Organization unit Faculty of Philosophy and Science in Opava
Doi http://dx.doi.org/10.1142/S0218271812500319
UT WoS 000303201900001
Keywords in English General relativity; Magellanic Clouds; Milky Way; Pseudo-Newtonian potential
Tags UF
Tags International impact, Reviewed
Links MSM4781305903, plan (intention).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 14/1/2021 14:24.
Abstract
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
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