### Einstein-ae ther models III: conformally static metrics, perfect fluid and scalar fields

### Abstract

The asymptotic properties of conformally static metrics in Einstein-ae ther theory with a perfect fluid source and a scalar field are analyzed. In case of perfect fluid, some relativistic solutions are recovered such as: Minkowski spacetime, the Kasner solution, a flat FLRW space and static orbits depending on the barotropic parameter gamma. To analyze locally the behavior of the solutions near a sonic line v2=gamma -1, where v is the tilt, a new "shock" variable is used. Two new equilibrium points on this line are found. These points do not exist in General Relativity when 1<

### Más información

Título según WOS: | Einstein-ae ther models III: conformally static metrics, perfect fluid and scalar fields |

Título de la Revista: | EUROPEAN PHYSICAL JOURNAL C |

Volumen: | 80 |

Número: | 12 |

Editorial: | Springer |

Fecha de publicación: | 2020 |

DOI: |
10.1140/EPJC/S10052-020-08731-Z |

Notas: | ISI |