Timelike geodesics around a charged spherically symmetric dilaton black hole
In this paper we study the timelike geodesics around a spherically symmetric charged dilaton black hole. The trajectories around the black hole are classified using the effective potential of a free test particle. This qualitative approach enables us to determine the type of orbit described...
| Main Author: | |
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| Format: | Article |
| Language: | English |
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Astronomical Observatory, Department of Astronomy, Belgrade
2015-01-01
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| Series: | Serbian Astronomical Journal |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-698X/2015/1450-698X1590041B.pdf |
| _version_ | 1818201754187071488 |
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| author | Blaga C. |
| author_facet | Blaga C. |
| author_sort | Blaga C. |
| collection | DOAJ |
| description | In this paper we study the timelike geodesics around a spherically symmetric
charged dilaton black hole. The trajectories around the black hole are
classified using the effective potential of a free test particle. This
qualitative approach enables us to determine the type of orbit described by
test particle without solving the equations of motion, if the parameters of
the black hole and the particle are known. The connections between these
parameters and the type of orbit described by the particle are obtained. To
visualize the orbits we solve numerically the equation of motion for
different values of parameters envolved in our analysis. The effective
potential of a free test particle looks different for a non-extremal and an
extremal black hole, therefore we have examined separately these two types of
black holes. |
| first_indexed | 2024-12-12T02:58:34Z |
| format | Article |
| id | doaj.art-133d94cb850945389056cacccff5b548 |
| institution | Directory Open Access Journal |
| issn | 1450-698X |
| language | English |
| last_indexed | 2024-12-12T02:58:34Z |
| publishDate | 2015-01-01 |
| publisher | Astronomical Observatory, Department of Astronomy, Belgrade |
| record_format | Article |
| series | Serbian Astronomical Journal |
| spelling | doaj.art-133d94cb850945389056cacccff5b5482022-12-22T00:40:41ZengAstronomical Observatory, Department of Astronomy, BelgradeSerbian Astronomical Journal1450-698X2015-01-012015190414810.2298/SAJ1590041B1450-698X1590041BTimelike geodesics around a charged spherically symmetric dilaton black holeBlaga C.0Babeş-Bolyai University Cluj-Napoca, Faculty of Mathematics and Computer Science, Cluj-Napoca, RomaniaIn this paper we study the timelike geodesics around a spherically symmetric charged dilaton black hole. The trajectories around the black hole are classified using the effective potential of a free test particle. This qualitative approach enables us to determine the type of orbit described by test particle without solving the equations of motion, if the parameters of the black hole and the particle are known. The connections between these parameters and the type of orbit described by the particle are obtained. To visualize the orbits we solve numerically the equation of motion for different values of parameters envolved in our analysis. The effective potential of a free test particle looks different for a non-extremal and an extremal black hole, therefore we have examined separately these two types of black holes.http://www.doiserbia.nb.rs/img/doi/1450-698X/2015/1450-698X1590041B.pdfblack hole physicsgravitationrelativistic processes |
| spellingShingle | Blaga C. Timelike geodesics around a charged spherically symmetric dilaton black hole Serbian Astronomical Journal black hole physics gravitation relativistic processes |
| title | Timelike geodesics around a charged spherically symmetric dilaton black hole |
| title_full | Timelike geodesics around a charged spherically symmetric dilaton black hole |
| title_fullStr | Timelike geodesics around a charged spherically symmetric dilaton black hole |
| title_full_unstemmed | Timelike geodesics around a charged spherically symmetric dilaton black hole |
| title_short | Timelike geodesics around a charged spherically symmetric dilaton black hole |
| title_sort | timelike geodesics around a charged spherically symmetric dilaton black hole |
| topic | black hole physics gravitation relativistic processes |
| url | http://www.doiserbia.nb.rs/img/doi/1450-698X/2015/1450-698X1590041B.pdf |
| work_keys_str_mv | AT blagac timelikegeodesicsaroundachargedsphericallysymmetricdilatonblackhole |