Effective potentials and orbits in Weyl slender disk
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Published:2022-03
Issue:3
Volume:82
Page:
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ISSN:1434-6044
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Container-title:The European Physical Journal C
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language:en
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Short-container-title:Eur. Phys. J. C
Author:
Capistrano Abraão J. S.,Kalb Mônica C.,Coimbra-Araújo Carlos H.
Abstract
AbstractBy using geodesic equations to obtain a gravitational potential generated from an initially point-like source, we end up in the concept of a nearly Newtonian gravity to analyse effective potentials of quasi-circular orbits. By means of an approximate solution from an axially static and symmetric Weyl metric, we provide a numerical study on effective gravitational potential to investigate the character of motion in the meridional plane of an axially symmetric galaxy model obtaining periodic regular box orbits. Moreover, as a test for a toy model and using as initial condition a Plummer sphere, some initial prospects on star N-body simulation of cluster disruption were obtained for clusters with mass about $$3\times 10^4\;M_{\odot }$$
3
×
10
4
M
⊙
. In the studied cases, our results suggest that such disruptions are caused mostly by their gravitational processes than baryonic content in accordance with $$\varLambda $$
Λ
CDM bottom-up hierarchy.
Funder
Coordination for the Improvement of Higher education Personnel Brazilian agency
Fundação Araucária
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
Reference68 articles.
1. H.C. Plummer, Mon. Not. R. Astron. Soc. 71, 460 (1911)
2. I.R. King, A.J., 71 , 64 (1966)
3. A. Toomre, ApJ 138, 385 (1963)
4. G.G. Kuzmin, AZh 33, 27 (1956)
5. M. Miyamoto, R. Nagai, Pub. Astron. Soc. Japan 27, 533 (1975)