Static spherical vacuum solutions in the bumblebee gravity model

نویسندگان

چکیده

The bumblebee gravity model is a vector-tensor theory of gravitation where the vector field nonminimally couples to Ricci tensor. By investigating vacuum equations with spherical symmetry, we find two families black-hole (BH) solutions in this model: one has vanishing radial component and other When coupling between tensor set zero, first family becomes Reissner-Nordstr\"om solution while second degenerates Schwarzschild being zero. General numerical both are obtained for nonzero Besides BH solutions, also reveal existence that have nonvanishing $tt$-component metric on supposed event horizon $rr$-component diverges curvature scalars finite. These not supported by existing observations but present certain properties academic interests. We conclude study putting into tests against Solar-system images supermassive BHs.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Static wormhole solution for higher-dimensional gravity in vacuum

Gustavo Dotti, Julio Oliva, and Ricardo Troncoso Facultad de Matemática, Astronomı́a y F́ısica, Universidad Nacional de Córdoba, Ciudad Universitaria, (5000) Córdoba, Argentina. Departamento de F́ısica, Universidad de Concepción, Casilla, 160-C, Concepción, Chile. Centro de Estudios Cient́ıficos (CECS), Casilla 1469, Valdivia, Chile. Abstract A static wormhole solution for gravity in vacuum is foun...

متن کامل

Spherical Self-Similar Solutions in Einstein-Multi-Scalar Gravity

We consider a general non-linear sigma model coupled to Einstein gravity and show that in spherical symmetry and for a simple realization of self-similarity, the spacetime can be completely determined. We also examine some more specific matter models and discuss their relation to critical collapse. ∗Electronic Address: [email protected] †On leave from Departamento de F́ısica Teórica, U...

متن کامل

Exact static solutions in four dimensional Einstein-Maxwell-Dilaton gravity

Classes of exact static solutions in four-dimensional Einstein-MaxwellDilaton gravity are found. Besides of the well-known solutions previously found in the literature, new solutions are presented.It’s shown that spherically symmetric solutions, except the case of charged dilaton black hole, represent globally naked strong curvature singularities. The scalar field is believed to play an importa...

متن کامل

Static spherically symmetric solutions for conformal gravity in three dimensions

Static spherically symmetric solutions for conformal gravity in three dimensions are found. Black holes and wormholes are included within this class. Asymptotically the black holes are spacetimes of arbitrary constant curvature, and they are conformally related to the matching of different solutions of constant curvature by means of an improper conformal transformation. The wormholes can be con...

متن کامل

On Static Solutions in 2D Dilaton Gravity with Scalar Matter

Within the first order formalism static solutions of generic dilaton gravity in 2D with self-interacting (scalar) matter can be discussed with ease. The question of (non)existence of Killing horizons is addressed and the interplay with asymptotic conditions is investigated. Naturally, such an analysis has to be a global one. A central element in the discussion is the rank of the Jacobi matrix o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical review

سال: 2023

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physrevd.107.024011