News and Updates
First binary black hole inspiral, merger, ringdown with SpECTRE
We now have the first complete binary black hole inspiral, merger, & ringdown using our next-generation code SpECTRE! Our preprint [arXiv:2410.00265] presenting this first complete BBH simulation was led by Kyle Nelli (grad student at Caltech) and Geoffrey Lovelace (professor at CSU Fullerton).
SXScon 2024 and SpECTRE community workshop
Many members of the SXS collaboration and the wider NR community met in Providence, RI this August, where the ICERM institute generously hosted our workshop “Simulating Extreme Spacetimes with SpEC and SpECTRE”. (fondly remembered as SXScon 2024).
Optimizing PN parameters and fixing the BMS frame for NR waveform hybridizations
What are hybrid gravitational waveforms? In meme form:
Numerical relativity surrogate model with memory effects and post-Newtonian hybridization
With our latest preprint [arXiv:2306.03148] (led by Cornell graduate student Jooheon Yoo), we present a numerical relativity surrogate model trained on SXS waveforms with memory effects and post-Newtonian hybridization! So what’s the hype about?!
Nonlinearities in black hole ringdowns
With our latest preprint [arXiv:2208.07380] (led by Caltech grad student Keefe Mitman), SXS simulations have conclusively shown the presence of nonlinearities in black hole ringdowns. What does it all mean?