Proposed Gravitational Wave Background from Black Hole–Torus Systems | Zendy

D. M. Coward | Zendy; Maurice H. P. M. van Putten | Zendy; R. R. Burman | Zendy

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Proposed Gravitational Wave Background from Black Hole–Torus Systems

Author(s) -

D. M. Coward,

Maurice H. P. M. van Putten,

R. R. Burman

Publication year - 2002

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/343786

Subject(s) - physics , gravitational wave , torus , gravitational wave background , astrophysics , black hole (networking) , radius , gravitation , astronomy , geometry , mathematics , routing (electronic design automation) , computer network , routing protocol , computer security , computer science , link state routing protocol

Cosmological gamma-ray bursts may be powered by rotating black holes withcontemporaneous emission of gravitational radiation from a surrounding torus.We calculate the resulting stochastic background radiation assuming strongcosmological evolution and a uniform black hole mass distribution of M=(4--14)M_odot. The predicted spectral flux density corresponds to a peakspectral closure density of (1--2) times 10^{-7}, and has comparablecontributions at 450 Hz times kappa and over 300--450 Hz times kappa fromnearby and distant sources, respectively, where kappa refers to an uncertaintyfactor of order unity in the radius of the torus. For two optimized advancedLIGO-type detectors the proposed gravitational wave background could bedetectable within a year of integration.Comment: To appear in Ap

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