# Building Cosmological Frozen Stars

@article{Kastor2016BuildingCF, title={Building Cosmological Frozen Stars}, author={David Kastor and Jennie Traschen}, journal={arXiv: High Energy Physics - Theory}, year={2016} }

Janis-Newman-Winicour (JNW) spacetimes generalize the Schwarzschild solution to include a massless scalar field. Although suffering from naked singularities, they share the `frozen star' features of Schwarzschild black holes. Cosmological versions of the JNW spacetimes were discovered some time ago by Husain, Martinez and Nunez and by Fonarev. Unlike Schwarzschild-deSitter black holes, these solutions are dynamical, and the scarcity of exact solutions for dynamical black holes in cosmological… Expand

#### 5 Citations

Critical phenomena in gravitational collapse of Husain–Martinez–Nunez scalar field

- Physics
- The European Physical Journal C
- 2019

We construct analytical models to study the critical phenomena in gravitational collapse of the Husain-Martinez-Nunez massless scalar field. We first use the cut-and-paste technique to match the… Expand

Gravitational instabilities and censorship of large scalar field excursions

- Physics
- Journal of High Energy Physics
- 2019

A bstractLarge, localized variations of light scalar fields tend to collapse into black holes, dynamically “censoring” distant points in field space. We show that in some cases, large scalar… Expand

Static dilatonic black hole with nonlinear Maxwell and Yang–Mills fields of power-law type

- Physics
- 2021

Static spherically symmetric black hole solution is obtained in the framework of Einstein-dilaton theory with nonlinear Maxwell and Yang–Mills fields of power-law type. It is observed that black hole… Expand

Searching for dynamical black holes in various theories of gravity

- Physics
- 2021

We construct models of Einstein and $f(R)$ gravity with two scalar fields, which admit analytical solutions describing time-varying dynamical black holes. Their thermodynamics is investigated in the… Expand

Spherical inhomogeneous solutions of Einstein and scalar–tensor gravity: A map of the land

- Physics
- 2021

Abstract We review spherical and inhomogeneous analytic solutions of the field equations of Einstein and of scalar-tensor gravity, including Brans–Dicke theory, non-minimally (possibly conformally)… Expand

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