# Some new results on charged compact boson stars

@article{Kumar2017SomeNR, title={Some new results on charged compact boson stars}, author={Sanjeev Kumar and U. Kulshreshtha and D. Kulshreshtha and Sarah Kahlen and J. Kunz}, journal={Physics Letters B}, year={2017}, volume={772}, pages={615-620} }

Abstract In this work we present some new results obtained in a study of the phase diagram of charged compact boson stars in a theory involving a complex scalar field with a conical potential coupled to a U(1) gauge field and gravity. We here obtain new bifurcation points in this model. We present a detailed discussion of the various regions of the phase diagram with respect to the bifurcation points. The theory is seen to contain rich physics in a particular domain of the phase diagram.

#### 8 Citations

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#### References

SHOWING 1-10 OF 23 REFERENCES

New results on charged compact boson stars

- Physics
- 2016

In this work we present some new results that we have obtained in a study of the phase diagram of charged compact boson stars in the theory involving massive complex scalar fields coupled to the U(1)… Expand

Compact (A)dS boson stars and shells

- Physics
- 2013

We present compact Q-balls in an (Anti-)de Sitter background in D dimensions, obtained with a V-shaped potential of the scalar field. Beyond critical values of the cosmological constant compact… Expand

Compact boson stars

- Physics
- 2012

Abstract We consider compact boson stars that arise for a V-shaped scalar field potential. They represent a one parameter family of solutions of the scaled Einstein–signum–Gordon equations. We… Expand

Charged compact boson stars and shells in the presence of a cosmological constant

- Physics
- 2016

In this work we study the boson stars and boson shells in a theory involving massive complex scalar fields coupled to the U(1) gauge field and gravity in a conical potential in the presence of a… Expand

Charged boson stars and black holes

- Physics
- 2009

Abstract We consider boson stars and black holes in scalar electrodynamics with a V-shaped scalar potential. The boson stars come in two types, having either ball-like or shell-like charge density.… Expand

Dynamical Boson Stars

- Physics, Medicine
- Living reviews in relativity
- 2012

This work discusses important varieties of boson stars, their dynamic properties, and some of their uses, concentrating on recent efforts. Expand

Dynamical boson stars

- Physics, Medicine
- Living reviews in relativity
- 2017

This work discusses important varieties of boson stars, their dynamic properties, and some of their uses, concentrating on recent efforts. Expand

Boson shells harboring charged black holes

- Physics
- 2010

We consider boson shells in scalar electrodynamics coupled to Einstein gravity. The interior of the shells can be empty space, or harbor a black hole or a naked singularity. We analyze the properties… Expand

Boson Stars in a Theory of Complex Scalar Fields coupled to $U(1)$ Gauge Field and Gravity

- Physics
- 2014

We study boson shells and boson stars in a theory of complex scalar field coupled to the $U(1)$ gauge field $A_{\mu}$ and Einstein gravity with the potential: $V(|\Phi|) := \frac{1}{2} m^{2}… Expand

Boson stars: alternatives to primordial black holes?

- Physics
- 2000

The present surge for the astrophysical relevance of boson stars stems from the speculative possibility that these compact objects could provide a considerable fraction of the non-baryonic part of… Expand