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Title: Collapsing shells, critical phenomena, and black hole formation
Author: Cardoso, Vitor
Rocha, Jorge V.
Keywords: Ones elàstiques
Forats negres (Astronomia)
Fenòmens crítics (Física)
Col·lapse gravitacional
Elastic waves
Black holes (Astronomy)
Critical phenomena (Physics)
Gravitational collapse
Issue Date: 20-Apr-2016
Publisher: American Physical Society
Abstract: We study the gravitational collapse of two thin shells of matter, in asymptotically flat spacetime or constrained to move within a spherical box. We show that this simple two-body system has surprisingly rich dynamics, which includes prompt collapse to a black hole, perpetually oscillating solutions or black hole formation at arbitrarily large times. Collapse is induced by shell crossing and the black hole mass depends sensitively on the number of shell crossings. At certain critical points, the black hole mass exhibits critical behavior, determined by the change in parity (even or odd) of the number of crossings, with or without mass-gap during the transition. Some of the features we observe are reminiscent of confined scalars undergoing 'turbulent' dynamics.
Note: Reproducció del document publicat a:
It is part of: Physical Review D, 2016, vol. 93, num. 084034
Related resource:
ISSN: 2470-0010
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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