Gravastars with Kuchowicz metric potential
In the present article we are going to study different features of a Gravitationally Vacuum Condensate Star, i.e., Gravastar with the help of the Kuchowicz metric potential [B. Kuchowicz, Acta. Phys. Pol. 33, 541 (1968)] in (3+1) dimensional spacetime. The gravastar consists of three regions namely...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-09-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379719306424 |
| _version_ | 1819056733125869568 |
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| author | Shounak Ghosh Dibyendu Shee Saibal Ray F. Rahaman B.K. Guha |
| author_facet | Shounak Ghosh Dibyendu Shee Saibal Ray F. Rahaman B.K. Guha |
| author_sort | Shounak Ghosh |
| collection | DOAJ |
| description | In the present article we are going to study different features of a Gravitationally Vacuum Condensate Star, i.e., Gravastar with the help of the Kuchowicz metric potential [B. Kuchowicz, Acta. Phys. Pol. 33, 541 (1968)] in (3+1) dimensional spacetime. The gravastar consists of three regions namely the interior, intermediate thin shell and the exterior. Our main objective is to study the non-singular solutions of the system considered here. Also we want to study different features of the shell region, composed of ultra relativistic plasma obeying Zel’dovich’s conjecture of stiff fluid, like the energy, proper length, entropy and surface redshift which will confirm the stability of our model. Using the Kuchowicz metric potential we have found another metric potential (i.e. eλ) for the interior and shell region which is non-singular in its nature for both of the region. The exterior of the gravastar has been described as the Schwarzschild type. We have found the numerical values of different constants imposing the boundary conditions. This theoretical model of gravastar can completely overcome the singularity problem related to black holes and hence can be taken as a promising alternative to the classical black hole within the framework of Einstein’s General Relativity. Keywords: General relativity, Gravastar, Kuchowicz metric potential |
| first_indexed | 2024-12-21T13:28:06Z |
| format | Article |
| id | doaj.art-a35aa72e5df848ef8bdd33851af33977 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-21T13:28:06Z |
| publishDate | 2019-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-a35aa72e5df848ef8bdd33851af339772022-12-21T19:02:24ZengElsevierResults in Physics2211-37972019-09-0114Gravastars with Kuchowicz metric potentialShounak Ghosh0Dibyendu Shee1Saibal Ray2F. Rahaman3B.K. Guha4Department of Physics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711103, IndiaDepartment of Physics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711103, IndiaDepartment of Physics, Government College of Engineering and Ceramic Technology, Kolkata 700010, West Bengal, India; Department of Natural Sciences, Maulana Abul Kalam Azad University of Technology, Haringhata 741249, West Bengal, India; Corresponding author.Department of Mathematics, Jadavpur University, Kolkata 700032, West Bengal, IndiaDepartment of Physics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711103, IndiaIn the present article we are going to study different features of a Gravitationally Vacuum Condensate Star, i.e., Gravastar with the help of the Kuchowicz metric potential [B. Kuchowicz, Acta. Phys. Pol. 33, 541 (1968)] in (3+1) dimensional spacetime. The gravastar consists of three regions namely the interior, intermediate thin shell and the exterior. Our main objective is to study the non-singular solutions of the system considered here. Also we want to study different features of the shell region, composed of ultra relativistic plasma obeying Zel’dovich’s conjecture of stiff fluid, like the energy, proper length, entropy and surface redshift which will confirm the stability of our model. Using the Kuchowicz metric potential we have found another metric potential (i.e. eλ) for the interior and shell region which is non-singular in its nature for both of the region. The exterior of the gravastar has been described as the Schwarzschild type. We have found the numerical values of different constants imposing the boundary conditions. This theoretical model of gravastar can completely overcome the singularity problem related to black holes and hence can be taken as a promising alternative to the classical black hole within the framework of Einstein’s General Relativity. Keywords: General relativity, Gravastar, Kuchowicz metric potentialhttp://www.sciencedirect.com/science/article/pii/S2211379719306424 |
| spellingShingle | Shounak Ghosh Dibyendu Shee Saibal Ray F. Rahaman B.K. Guha Gravastars with Kuchowicz metric potential Results in Physics |
| title | Gravastars with Kuchowicz metric potential |
| title_full | Gravastars with Kuchowicz metric potential |
| title_fullStr | Gravastars with Kuchowicz metric potential |
| title_full_unstemmed | Gravastars with Kuchowicz metric potential |
| title_short | Gravastars with Kuchowicz metric potential |
| title_sort | gravastars with kuchowicz metric potential |
| url | http://www.sciencedirect.com/science/article/pii/S2211379719306424 |
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