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SUMMARY:Gravitational wave extraction in higher dimensional numerical rela
 tivity - William Cook
DTSTART:20170428T120000Z
DTEND:20170428T130000Z
UID:TALK72470@talks.cam.ac.uk
CONTACT:Christopher Moore
DESCRIPTION:In four dimensional General Relativity the properties of gravi
 tational waves emitted in BH-BH mergers have been extensively studied usin
 g numerical relativity\, largely in astrophysical settings. Understanding 
 higher dimensional BH-BH collisions is an important goal for numerical rel
 ativity\, firstly in order to observe the behaviour of the theory in its m
 ost extreme\, non-linear regime\, and also due to its applications to area
 s of high energy physics such as TeV gravity theories. In this work we pre
 sent for the first time full non-linear simulations of head-on BH-BH colli
 sions in up to 10 dimensions and present an analysis of the gravitational 
 radiation emitted. We use a new method for analysis of the radiation\, ana
 logous to the well known Weyl scalar method based on the Newman-Penrose fo
 rmalism in 4D. We find that as the number of dimensions is increased\, the
  energy emitted in gravitational radiation is suppressed. We also present 
 a comparison of our numerical data with point particle calculations.
LOCATION:Pavilion B Potter Room (B1.19)
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