| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000397214 |
| ISSN: | 0103-9733 |
| Autores: | Letelier, Patricio1 Araújo, Carlos Henrique Coimbra2 |
| Instituciones: | 1Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Computacao Cientifica, Campinas, Sao Paulo. Brasil 2Universidade Federal do Parana, Palotina, Parana. Brasil |
| Año: | 2012 |
| Periodo: | Abr |
| Volumen: | 42 |
| Número: | 1-2 |
| Paginación: | 100-109 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | Any connection between dark matter and extra dimensions is revealed by the effective energymomentum tensor associated with the theory. In order to investigate and test such a relationship, we examine a higher-dimensional space–time endowed with a factorizable general metric with a configuration such that its density profile coincides with the Newtonian potential for disk galaxies. An appropriate solution representing stratifications of mass in the central-bulge and disk part of galaxies, e.g., the Miyamoto–Nagai ansatz, is used to solve the Einstein equations. We compute the stable rotation curves of such systems and, with no adjustable parameters, accurately recover the observational data for flat or not asymptotically flat galaxy rotation curves. We present examples of density profiles and compare them to the profile obtained from purely Newtonian potentials |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Física de partículas y campos cuánticos, Astrofísica, Galaxias, Materia oscura, Galaxias espirales, Rotación |
| Keyword: | Physics and astronomy, Particle physics and quantum fields, Astrophysics, Galaxies, Dark matter, Spiral galaxies, Rotation |
| Texto completo: | Texto completo (Ver PDF) |
