Publikace ÚTF

Critical Phenomena in the Collapse of Gravitational Waves

Baumgarte T. W.; Brügmann B.; Cors D.; Gundlach C.; Hilditch D.; Khirnov A.; Ledvinka T.; Renkhoff S.; Suárez Fernández I.

Fine-tuning generic but smooth spherically symmetric initial data for general relativity to the threshold of dynamical black hole formation creates arbitrarily large curvatures, mediated by a universal self-similar solution that acts as an intermediate attractor. For vacuum gravitational waves, however, these critical phenomena have been elusive.We present, for the first time, excellent agreement among three independent numerical simulations of this collapse. Surprisingly, we find no universality, and observe approximate selfsimilarity for some families of initial data but not for others.
type:article
journal:Phys. Rev. Lett.
volume:131
year:2023
month:10
grants:Mass and charge currents in general relativity and astrophysics, GAČR 21-11268S; 2021-2023; hlavní řešitel: Oldřich Semerák
files:
physrevlett.131.181401_khirnov.ledvinka.pdf (1941.62 kB)

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