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Ultrarelativistic Black Hole Formation

Author(s): East, William E; Pretorius, Frans

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Abstract: We study the head-on collision of fluid particles well within the kinetic energy dominated regime (gamma = 8 to 12) by numerically solving the Einstein-hydrodynamic equations. We find that the threshold for black hole formation is lower (by a factor of a few) than simple hoop conjecture estimates, and, moreover, near this threshold two distinct apparent horizons first form postcollision and then merge. We argue that this can be understood in terms of a gravitational focusing effect. The gravitational radiation reaches luminosities of 0: 014 c(5)/G, carrying 16 +/- 2% of the total energy. DOI: 10.1103/PhysRevLett.110.101101
Publication Date: 8-Mar-2013
Electronic Publication Date: 7-Mar-2013
Citation: East, William E, Pretorius, Frans. (2013). Ultrarelativistic Black Hole Formation. PHYSICAL REVIEW LETTERS, 110 (10.1103/PhysRevLett.110.101101
DOI: doi:10.1103/PhysRevLett.110.101101
ISSN: 0031-9007
EISSN: 1079-7114
Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW LETTERS
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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