Nonlinear evolutions of bosonic clouds around black holes

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Black holes are a laboratory not only for testing the theory of gravity but also for exploring the properties of fundamental fields. Fundamental fields around a supermassive black hole give rise to extremely long-lived quasi-bound states which can in principle extract the energy and angular momentum from the black hole. To investigate the final state of such a system, the backreaction onto the spacetime becomes important because of the nonlinearity of the Einstein equation. In this paper, we review the numerical method to trace the evolution of massive scalar fields in the vicinity of black holes, how such a system originates from scalar clouds initially in the absence of black holes or from the capture of scalar clouds by a black hole, and the evolution of quasi-bound states around both a non-rotating black hole and a rotating black hole including the backreaction.

Original languageEnglish
Article number214003
JournalClassical and Quantum Gravity
Volume32
Issue number21
DOIs
Publication statusPublished - 2015 Oct 15

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scalars
Einstein equations
angular momentum
kinetic energy
nonlinearity
gravitation

Keywords

  • black holes
  • fundamental fields
  • numerical relativity
  • superradiance

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Nonlinear evolutions of bosonic clouds around black holes. / Okawa, Hirotada.

In: Classical and Quantum Gravity, Vol. 32, No. 21, 214003, 15.10.2015.

Research output: Contribution to journalArticle

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