English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study conformally-flat initial data for an arbitrary number of spinningblack holes with exact analytic solutions to the momentum constraintsconstructed from a linear combination of the classical Bowen-York and conformalKerr extrinsic curvatures. The solution leading to the largest intrinsic spin,relative to the ADM mass of the spacetime epsilon_S=S/M^2_{ADM}, is asuperposition with relative weights of Lambda=0.783 for conformal Kerr and(1-Lambda)=0.217 for Bowen-York. In addition, we measure the spin relative tothe initial horizon mass M_{H_0}, and find that the quantity chi=S/M_{H_0}^2reaches a maximum of \chi^{max}=0.9856 for Lambda=0.753. After equilibration,the final black-hole spin should lie in the interval 0.9324<chi_{final}<0.9856.We perform full numerical evolutions to compute the energy radiated and thefinal horizon mass and spin. We find that the black hole settles to a finalspin of chi_{final}^{max}=0.935 when Lambda=0.783. We also study the evolutionof the apparent horizon structure of this "maximal" black hole in detail.

Study of Conformally Flat Initial Data for Highly Spinning Black Holes and their Early Evolutions