Numerical relativity sta nds as the primary method of generating precise waveform predictions for c omparable-mass compact binary coalescences used in gravitational wave data analysis pipelines. \;To produce those predictions\, the spacetime i n the vicinity of the binary system must be simulated to high precision\, and then the waveform information must be extracted from the dynamical spa cetime near the binary. \;Cauchy Characteristic Evolution (CCE) offer s a wave extraction method capable of efficiently determining a complete\, asymptotically well-behaved metric at Scri+. \;For our implementatio n of CCE in SpECTRE\, we have developed a number of mathematical refinemen ts of the CCE system that improves spectral convergence and eases the comp utation of detailed dynamical spacetime information at Scri+. \;Our i mplementation in SpECTRE is far faster than previous CCE codes\, is free f rom logarithmic pathologies\, and computes full waveform information: news \, strain\, and all five Weyl scalars. \;I will discuss the numerical methods used to improve the performance of SpECTRE CCE\, as well as sever al projects that have used the system to study gravitational wave memory a nd other subtle waveform effects that become available with full access to waveform data at Scri+.

\n DTSTART:20210426T170000Z LOCATION:Online\, Room Zoom SUMMARY:High-performance Gravitational Wave Extraction in SpECTRE END:VEVENT END:VCALENDAR