Rotating Topological Stars

Fuente: arXiv
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Main Authors: Bianchi, Massimo, Dibitetto, Giuseppe, Morales, Jose F., Ruipérez, Alejandro
Format: Preprint
Published: 2025
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author Bianchi, Massimo
Dibitetto, Giuseppe
Morales, Jose F.
Ruipérez, Alejandro
author_facet Bianchi, Massimo
Dibitetto, Giuseppe
Morales, Jose F.
Ruipérez, Alejandro
contents We construct a three-parameter family of smooth and horizonless rotating solutions of Einstein-Maxwell theory with Chern-Simons term in five dimensions and discuss their stringy origin in terms of three-charge brane systems in Type IIB and M-theory. The general solution interpolates smoothly between Kerr and static Topological Star geometries. We show that for specific choices of the parameters and quantized values of the angular momentum the geometry terminates on a smooth five-dimensional cap, and it displays neither ergoregion nor closed timelike curves. We discuss the propagation of particles and waves showing that geodetic motion is integrable and the radial and angular propagation of scalar perturbations can be separated and described in terms of two ordinary differential equations of confluent Heun type.
format Preprint
id arxiv_https___arxiv_org_abs_2504_12235
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Rotating Topological Stars
Bianchi, Massimo
Dibitetto, Giuseppe
Morales, Jose F.
Ruipérez, Alejandro
High Energy Physics - Theory
We construct a three-parameter family of smooth and horizonless rotating solutions of Einstein-Maxwell theory with Chern-Simons term in five dimensions and discuss their stringy origin in terms of three-charge brane systems in Type IIB and M-theory. The general solution interpolates smoothly between Kerr and static Topological Star geometries. We show that for specific choices of the parameters and quantized values of the angular momentum the geometry terminates on a smooth five-dimensional cap, and it displays neither ergoregion nor closed timelike curves. We discuss the propagation of particles and waves showing that geodetic motion is integrable and the radial and angular propagation of scalar perturbations can be separated and described in terms of two ordinary differential equations of confluent Heun type.
title Rotating Topological Stars
topic High Energy Physics - Theory
url https://arxiv.org/abs/2504.12235