| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000398320 |
| ISSN: | 0103-9733 |
| Authors: | Ulhoa, S.C1 Rocha, P.M.M2 |
| Institutions: | 1Universidade de Brasilia, Faculdade Gama, Brasilia, Distrito Federal. Brasil 2University of Alberta, Theoretical Physics Institute, Edmonton, Alberta. Canadá |
| Year: | 2013 |
| Season: | Jun |
| Volumen: | 43 |
| Number: | 3 |
| Pages: | 162-171 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | In this paper, we deal with neutron stars, which are described by a perfect fluid model, in the context of the teleparallel equivalent of general relativity. We use numerical computations (based on the RNS code) to find the relation between the angular momentum of the field and the angular momentum of the source. One such relation was established for each stable star resulting from the numerical computation with an equation of state, the central energy density, and the ratio between the polar and equatorial radii as input, the central energy density and the ratio between polar and equatorial radii. We also find a regime in which the relation between gravitational angular momentum and moment of inertia (as well as the angular velocity of the fluid) is linear. We give the spatial distribution of the gravitational energy and show that it depends linearly on the squared angular velocity of the source |
| Disciplines: | Física y astronomía |
| Keyword: | Física de partículas y campos cuánticos, Astrofísica, Estrellas de neutrones, Relatividad general, Teleparalelismo |
| Keyword: | Physics and astronomy, Particle physics and quantum fields, Astrophysics, Neutron stars, General relativity, Teleparallelism |
| Full text: | Texto completo (Ver PDF) |
