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SUMMARY:Coherent Gravitational Waveforms from Cosmic String Loops - Josu C
 . Aurrekoetxea (King's College London)
DTSTART:20191115T130000Z
DTEND:20191115T140000Z
UID:TALK132220@talks.cam.ac.uk
CONTACT:Nathan Johnson-McDaniel
DESCRIPTION:We investigate the gravitational wave production of black hole
  formation from Abelian Higgs cosmic string loop collapse in full general 
 relativity. We compute the waveform and the energy emitted in gravitationa
 l waves for different width\, radii and string tensions Gμ. We find that 
 the mass normalized GW energy displays a strong dependence on the inverse 
 of the string tension E_GW/M_0 ∝ 1/Gμ\, with E_GW/M_0 ∼ O(1)% at the 
 percent level. Conversely\, we show that it is only weakly dependent on th
 e initial string width and initial string radius. Using these results\, we
  argue that GW production is dominated by kinematical instead of geometric
 al considerations. Finally\, we construct the full time-domain strain h\, 
 parameterized by Gμ\, in preparation for the construction of coherent cos
 mic strings waveform templates required for a match-filtering event search
  with LIGO/Virgo.
LOCATION:Pavilion B Potter Room (B1.19)
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