English

Analytical solutions for black-hole critical behaviour

General Relativity and Quantum Cosmology 2008-11-26 v2

Abstract

Dynamical Einstein cluster is a spherical self-gravitating system of counterrotating particles, which may expand, oscillate and collapse. This system exhibits critical behaviour in its collapse at the threshold of black hole formation. It appears when the specific angular momentum of particles is tuned finely to the critical value. We find the unique exact self-similar solution at the threshold. This solution begins with a regular surface, involves timelike naked singularity formation and asymptotically approaches a static self-similar cluster.

Keywords

Cite

@article{arxiv.0707.3000,
  title  = {Analytical solutions for black-hole critical behaviour},
  author = {Tomohiro Harada and Ashutosh Mahajan},
  journal= {arXiv preprint arXiv:0707.3000},
  year   = {2008}
}

Comments

4 pages, 3 figures, accepted for publication in General Relativity and Gravitation, typos corrected

R2 v1 2026-06-21T09:00:00.241Z