Black holes of ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>2</mml:mn><mml:mo>+</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:math> )-dimensional <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>f</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>R</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math> gravity coupled to a scalar field
نویسندگان
چکیده
We consider $f(R)$ gravity theories in the presence of a scalar field minimally coupled to with self-interacting potential $(2+1)$-dimensions. Without specifying form function, we first obtain an exact black hole solution dressed hair charge appear function and discuss its thermodynamics. This at large distances gives hairy BTZ hole, it reduces when decouples. In pure supported by field, find similar phantom analytic
منابع مشابه
Black holes and asymptotics of 2+1 gravity coupled to a scalar field
We consider 2+1 gravity minimally coupled to a self-interacting scalar field. The case in which the fall-off of the fields at infinity is slower than that of a localized distribution of matter is analyzed. It is found that the asymptotic symmetry group remains the same as in pure gravity (i.e., the conformal group). The generators of the asymptotic symmetries, however, acquire a contribution fr...
متن کاملOn black holes in the theory of dilatonic gravity coupled to a scalar field
Taking advantage of the representation of dilatonic gravity with the R-term under the form of low-derivative dilatonic gravity coupled to an additonal scalar, we construct a general renormalizable model motivated by this theory. Exact black hole solutions are found for some specific versions of the model, and their thermodynamical properties are described in detail. In particular, their horizon...
متن کاملCold scalar-tensor black holes coupled to a massless scalar field
New four-dimensional black hole solutions of Brans-Dicke equations with a negative constant ω, coupled to a massless scalar field, are presented. The temperature of these black holes is zero and the horizon area is infinite. An astrophysical application is also discussed. Scalar-tensor theories of gravity are considered as the most natural generalizations of general relativity. From theoretical...
متن کاملStatic black holes in scalar tensor gravity
We study static black hole solutions in scalar tensor gravity. We present exact solutions in hiperextended models with a quadratic scalar potential. On leave from: Departamento de F́ısica da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
متن کامل9 Born - Infeld black holes coupled to a massive scalar field
Born-Infeld black holes in the Scalar-Tensor Theories of Gravity, in the case of massless scalar field, have been recently obtained [1, 2, 3]. The aim of the current paper is to study the effect from the inclusion of a potential for the scalar field in the theory, through a combination of analytical techniques and numerical methods. The black holes coupled to a massive scalar field have richer ...
متن کاملذخیره 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: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.103.064063