Detailed Information on Publication Record
2012
Comparison of general relativistic and pseudo-newtonian description of magellanic-clouds motion in the field of milky way
SCHEE, Jan and Zdeněk STUCHLÍKBasic information
Original name
Comparison of general relativistic and pseudo-newtonian description of magellanic-clouds motion in the field of milky way
Authors
Edition
International Journal of Modern Physics D, SG - Singapurská republika, 2012, 0218-2718
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Organization unit
Faculty of Philosophy and Science in Opava
UT WoS
000303201900001
Keywords in English
General relativity; Magellanic Clouds; Milky Way; Pseudo-Newtonian potential
Tags
Tags
International impact, Reviewed
Links
MSM4781305903, plan (intention).
Změněno: 14/1/2021 14:24, Mgr. Pavlína Jalůvková
Abstract
V originále
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