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Black hole scalarization induced by the spin -- 2+1 time evolution

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arxiv 2008.07391 v1 pith:P7643EZQ submitted 2020-08-17 gr-qc astro-ph.HEhep-th

Daniela D. Doneva , Lucas G. Collodel , Christian J. Krüger , Stoytcho S. Yazadjiev This is my paper · ORCID
classification gr-qcastro-ph.HEhep-th
keywords blackfieldscalarscalarizationholeevolutiongauss-bonnetspin-induced
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The scalarization is a very interesting phenomena allowing to endow a compact object with scalar hair while leaving all the predictions in the weak field limit unaltered. In Gauss-Bonnet gravity the source of the scalar field can be the curvature of the space-time. It was recently shown that for a particular type of coupling function between the scalar field and the Gauss-Bonnet invariant, spin-induced black hole scalarization is possible. In the present paper we study this phenomenon by performing a 2+1 time evolution of the relevant linearized scalar field perturbation equation and examine the region where the Kerr black hole becomes unstable giving rise to new scalarized rotating black holes. This is more direct numerical approach to study the development of spin-induced scalarization and it can serve as an independent check of the previous results.

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Cited by 5 Pith papers

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