Spacetime Geometry of Rotating Boson Stars and KBHsSH
摘要
In this article we give an overview of the proprieties of rotating boson stars and Kerr black holes with scalar hair. A fluid description of the scalar matter is provided, and by adopting a frame co-moving with the fluid we find a structural connection between both objects. We show that the unusual distribution of the scalar matter warps spacetime in a very unique way, such that some metric functions on the equatorial plane behave nonmonotonically. The implications it bears to circular orbits is explored.