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  Black-hole production from ultrarelativistic collisions

Rezzolla, L., & Takami, K. (2013). Black-hole production from ultrarelativistic collisions. Classical and quantum gravity, 30(1): 012001. doi:10.1088/0264-9381/30/1/012001.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-EB7A-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-EB7B-4
Genre: Journal Article

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1209.6138 (Preprint), 516KB
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 Creators:
Rezzolla, Luciano1, Author              
Takami, Kentaro1, Author
Affiliations:
1Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE,High Energy Physics - Theory, hep-th
 Abstract: Determining the conditions under which a black hole can be produced is a long-standing and fundamental problem in general relativity. We use numerical simulations of colliding selfgravitating fluid objects to study the conditions of black-hole formation when the objects are boosted to ultrarelativistic speeds. Expanding on previous work, we show that the collision is characterized by a type-I critical behaviour, with a black hole being produced for masses above a critical value, M_c, and a partially bound object for masses below the critical one. More importantly, we show for the first time that the critical mass varies with the initial effective Lorentz factor <\gamma> following a simple scaling of the type M_c ~ K <\gamma>^{-1.0}, thus indicating that a black hole of infinitesimal mass is produced in the limit of a diverging Lorentz factor. Furthermore, because a scaling is present also in terms of the initial stellar compactness, we provide a condition for black-hole formation in the spirit of the hoop conjecture.

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 Dates: 2012-09-272012-11-292013
 Publication Status: Published in print
 Pages: Accepted as FTC on CQG; no discussion of LHC (seen as too speculative but available in v1); expanded considerations on hoop conjecture
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1209.6138
DOI: 10.1088/0264-9381/30/1/012001
URI: http://arxiv.org/abs/1209.6138
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Title: Classical and quantum gravity
Source Genre: Journal
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Publ. Info: Bristol, U.K. : Institute of Physics
Pages: - Volume / Issue: 30 (1) Sequence Number: 012001 Start / End Page: - Identifier: ISSN: 0264-9381
CoNE: https://pure.mpg.de/cone/journals/resource/954925513480_1