A simple model for accretion disks in the post-Newtonian approximation
p { margin-bottom: 0.1in; direction: ltr; line-height: 120%; text-align: left; }a:link { } In this paper, the evolution of accretion disks in the post-Newtonian limit has been investigated. These disks are formed around gravitational compact objects such as black holes, neutron stars, or white dwa...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Isfahan University of Technology
2019-09-01
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| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | http://ijpr.iut.ac.ir/article-1-2486-en.html |
| _version_ | 1819026979971661824 |
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| author | R Ranjbar M Roshan SH Abbassi |
| author_facet | R Ranjbar M Roshan SH Abbassi |
| author_sort | R Ranjbar |
| collection | DOAJ |
| description | p { margin-bottom: 0.1in; direction: ltr; line-height: 120%; text-align: left; }a:link { }
In this paper, the evolution of accretion disks in the post-Newtonian limit has been investigated. These disks are formed around gravitational compact objects such as black holes, neutron stars, or white dwarfs. Although most analytical researches have been conducted in this context in the framework of Newtonian dynamics and gravity, it is necessary to consider the effects of relativity on the structure of disks near the central body. To this end, by adding the post-Newtonian corrections to the hydrodynamic equations of the fluids, the equations for the time transformation of the accretion disks at the post-Newtonian limit were obtained; by using this equation, the surface density of the disk, which is dependent on radius and time, is got quasi- analytically. Finally, we compare the time evolution of the accretion disks in Newtonian and post-Newtonian gravity. |
| first_indexed | 2024-12-21T05:35:11Z |
| format | Article |
| id | doaj.art-bd2f34028fa340bb813bb7ee7e22c8f3 |
| institution | Directory Open Access Journal |
| issn | 1682-6957 2345-3664 |
| language | English |
| last_indexed | 2024-12-21T05:35:11Z |
| publishDate | 2019-09-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Iranian Journal of Physics Research |
| spelling | doaj.art-bd2f34028fa340bb813bb7ee7e22c8f32022-12-21T19:14:26ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572345-36642019-09-01192273283A simple model for accretion disks in the post-Newtonian approximationR Ranjbar0M Roshan1SH Abbassi2 Department of Physics, Faculty of Basic Sciences, Ferdowsi University of Mashhad, Mashhad, Iran Department of Physics, Faculty of Basic Sciences, Ferdowsi University of Mashhad, Mashhad, Iran Department of Physics, Faculty of Basic Sciences, Ferdowsi University of Mashhad, Mashhad, Iran p { margin-bottom: 0.1in; direction: ltr; line-height: 120%; text-align: left; }a:link { } In this paper, the evolution of accretion disks in the post-Newtonian limit has been investigated. These disks are formed around gravitational compact objects such as black holes, neutron stars, or white dwarfs. Although most analytical researches have been conducted in this context in the framework of Newtonian dynamics and gravity, it is necessary to consider the effects of relativity on the structure of disks near the central body. To this end, by adding the post-Newtonian corrections to the hydrodynamic equations of the fluids, the equations for the time transformation of the accretion disks at the post-Newtonian limit were obtained; by using this equation, the surface density of the disk, which is dependent on radius and time, is got quasi- analytically. Finally, we compare the time evolution of the accretion disks in Newtonian and post-Newtonian gravity.http://ijpr.iut.ac.ir/article-1-2486-en.htmlaccretion diskpost-Newtonian limitblack hole |
| spellingShingle | R Ranjbar M Roshan SH Abbassi A simple model for accretion disks in the post-Newtonian approximation Iranian Journal of Physics Research accretion disk post-Newtonian limit black hole |
| title | A simple model for accretion disks in the post-Newtonian approximation |
| title_full | A simple model for accretion disks in the post-Newtonian approximation |
| title_fullStr | A simple model for accretion disks in the post-Newtonian approximation |
| title_full_unstemmed | A simple model for accretion disks in the post-Newtonian approximation |
| title_short | A simple model for accretion disks in the post-Newtonian approximation |
| title_sort | simple model for accretion disks in the post newtonian approximation |
| topic | accretion disk post-Newtonian limit black hole |
| url | http://ijpr.iut.ac.ir/article-1-2486-en.html |
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