Brane-world stars with a solid crust and vacuum exterior
Abstract
The minimal geometric deformation approach is employed to show the existence of brane-world stellar distributions with a vacuum Schwarzschild exterior, thus without energy leaking from the exterior of the brane-world star into the extra dimension. The interior satisfies all the elementary criteria of physical acceptability for a stellar solution, namely, it is regular at the origin, the pressure and density are positive and decrease monotonically with increasing radius, and all energy conditions are fulfilled. A very thin solid crust with negative radial pressure separates the interior from the exterior, having a thickness. inversely proportional to both the brane tension sigma and the radius R of the star, i.e. Delta(-1) similar to R sigma. This brane-world star with Schwarzschild exterior would appear only thermally radiating to a distant observer and be fully compatible with the stringent constraints imposed on stellar parameters by observations of gravitational lensing, orbital evolutions or properties of accretion disks.
Más información
| Título según WOS: | ID WOS:000349156400016 Not found in local WOS DB |
| Título de la Revista: | CLASSICAL AND QUANTUM GRAVITY |
| Volumen: | 32 |
| Número: | 4 |
| Editorial: | IOP PUBLISHING LTD |
| Fecha de publicación: | 2015 |
| DOI: |
10.1088/0264-9381/32/4/045015 |
| Notas: | ISI |