| Journal: | Revista mexicana de física |
| Database: | PERIÓDICA |
| System number: | 000438856 |
| ISSN: | 0035-001X |
| Authors: | Estevez Delgado, G1 Estevez Delgado, J2 Pineda Durán, M3 Montelongo García, N4 Paulin Fuentes, J.M5 |
| Institutions: | 1Universidad Michoacana de San Nicolás Hidalgo, Facultad de Químico Farmacobiología, Morelia, Michoacán. México 2Universidad Michoacana de San Nicolás Hidalgo, Facultad de Ciencias Físico Matemáticas, Morelia, Michoacán. México 3Instituto Tecnológico Superior de Tacámbaro, Tacámbaro, Michoacán. México 4Universidad Tecnológica de Morelia, Morelia, Michoacán. México 5Universidad Juárez Autónoma de Tabasco, Cunduacán, Tabasco. México |
| Year: | 2019 |
| Season: | Jul-Ago |
| Volumen: | 65 |
| Number: | 4 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, teórico |
| English abstract | A relativistic, static and spherically symmetrical stellar model is presented, constituted by a perfect charged fluid. This represents a generalization to the case of a perfect neutral fluid, whose construction is made through the solution to the Einstein-Maxwell equations proposing a form for the gravitational potential gtt and the electric field. The choice of electric field implies that this model supports values of compactness u = GM / c2R ≤ 0.5337972212, wich are higher than the case without electric charge (u = 0.3581350065), being this feature of relevance to represent compact stars. In addition, density and pressure are positive functions, bounded and decreasing monotones while the electric field is a monotonously increasing function as well as satisfying the condition of causality, so the model is physically acceptable. Additionally, the internal behavior of the hydrostatic functions and their values are obtained taking as data the corresponding to a star of 1 Mʘ for different values of the charge parameter, obtaining an interval for the central density ρc ≈ (7.9545, 2.7279)1019 Kg/m3 characteristic of compact stars |
| Disciplines: | Física y astronomía |
| Keyword: | Física, Soluciones exactas, Fluido perfecto, Soluciones Star |
| Keyword: | Physics, Exact solutions, Perfect fluid, Stars solutions |
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