Collisions of black holes: Cracks in a hard problem

Details Collisions of black holes: Cracks in a hard problem Collisions of black holes: Cracks in a hard problem

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..575..164m&link_type=abstract

ASTROPHYSICAL SOURCES FOR GROUND-BASED GRAVITATIONAL WAVE DETECTORS. AIP Conference Proceedings, Volume 575, pp. 164-175 (2001)

Statistics

Computation

Black Holes, Binary And Multiple Stars, Relativity And Gravitation, Wave Generation And Sources

Scientific paper

I outline recently published progress in the evolution of binary black hole space-times, using a method that excises the singular regions inside the apparent horizons. This includes a new method for setting data for moving black holes, and the simulation of non-headon (grazing) collisions of binary black holes in which the black hole singularities have been excised from the computational domain. I describe an evolution of up to t~35m involving two equal mass spinning black holes m in which two initially separate apparent horizons are present for t~3.8m. At that time a single enveloping apparent horizon forms, indicating that the holes have merged. Apparent horizon area estimates suggest gravitational radiation of about 2%-3% of the total mass. The evolutions end after a moderate amount of time because of instabilities. .

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