Charged Boson Stars and Black Holes with Non-Minimal Coupling to Gravity

@article{Verbin2017ChargedBS,
  title={Charged Boson Stars and Black Holes with Non-Minimal Coupling to Gravity},
  author={Yosef Verbin and Yves Brihaye},
  journal={Physical Review D},
  year={2017},
  volume={97}
}
We find new spherically symmetric charged boson star solutions of a complex scalar field coupled non-minimally to gravity by a "John-type" term of Horndeski theory, that is a coupling between the kinetic scalar term and Einstein tensor. We study the parameter space of the solutions and find two distinct families according to their position in parameter space. More widespread is the family of solutions (which we call branch 1) existing for a finite interval of the central value of the scalar… 
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References

SHOWING 1-10 OF 56 REFERENCES

Charged Galileon black holes

We consider an Abelian gauge field coupled to a particular truncation of Horndeski theory. The Galileon field has translation symmetry and couples non minimally both to the metric and the gauge…

General relativistic boson stars

There is accumulating evidence that (fundamental) scalar fields may exist in nature. The gravitational collapse of such a boson cloud would lead to a boson star (BS) as a new type of a compact…

Black hole hair in generalized scalar-tensor gravity: An explicit example

In a recent paper we showed that in shift-symmetric Horndeski theory the scalar field is forced to obtain a nontrivial configuration in black hole spacetimes, unless a linear coupling with the…

Asymptotically locally AdS and flat black holes in the presence of an electric field in the Horndeski scenario

Asymptotically locally AdS and asymptotically locally flat black hole solutions are found for a particular case of the Horndeski action. The action contains the Einstein-Hilbert term in the gravity…

Solutions in the scalar-tensor theory with nonminimal derivative coupling

We present black hole type solutions in the scalar-tensor theory with nonminimal derivative coupling to the Einstein tensor. The effects of the nonminimal derivative coupling appear in the large…

Black holes with nonminimal derivative coupling

We study the gravitational field equations in the presence of a coupling between the derivative of a massless scalar field and the Einstein tensor. This configuration is motivated by Galileon gravity…

Black holes and stars in Horndeski theory

We review black hole and star solutions for Horndeski theory. For non-shift symmetric theories, black holes involve a Kaluza–Klein reduction of higher dimensional Lovelock solutions. On the other…

Charged boson stars and vacuum instabilities

Black hole hair in generalized scalar-tensor gravity.

Horndeski's theory is considered, and it is shown that in such theories, the scalar field is forced to have a nontrivial configuration in black hole spacetimes, unless one carefully tunes away a linear coupling with the Gauss-Bonnet invariant.

The screening Horndeski cosmologies

We present a systematic analysis of homogeneous and isotropic cosmologies in a particular Horndeski model with Galileon shift symmetry, containing also a Λ-term and a matter. The model, sometimes…
...