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CATEGORIES:DAMTP Friday GR Seminar
SUMMARY:Gravitational wave extraction in higher dimensiona
l numerical relativity - William Cook
DTSTART;TZID=Europe/London:20170428T130000
DTEND;TZID=Europe/London:20170428T140000
UID:TALK72470AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/72470
DESCRIPTION:In four dimensional General Relativity the propert
ies of gravitational waves emitted in BH-BH merger
s have been extensively studied using numerical re
lativity\, largely in astrophysical settings. Unde
rstanding higher dimensional BH-BH collisions is a
n important goal for numerical relativity\, firstl
y in order to observe the behaviour of the theory
in its most extreme\, non-linear regime\, and also
due to its applications to areas of high energy p
hysics such as TeV gravity theories. In this work
we present for the first time full non-linear simu
lations of head-on BH-BH collisions in up to 10 di
mensions and present an analysis of the gravitatio
nal radiation emitted. We use a new method for ana
lysis of the radiation\, analogous to the well kno
wn Weyl scalar method based on the Newman-Penrose
formalism in 4D. We find that as the number of dim
ensions is increased\, the energy emitted in gravi
tational radiation is suppressed. We also present
a comparison of our numerical data with point part
icle calculations.
LOCATION:Pavilion B Potter Room (B1.19)
CONTACT:Christopher Moore
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