English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A general method is presented for estimating the uncertainty in hybrid modelsof gravitational waveforms from binary black-hole systems with arbitraryphysical parameters, and thence the highest allowable initial orbital frequencyfor a numerical-relativity simulation such that the combined analytical andnumerical waveform meets some minimum desired accuracy. The key strength ofthis estimate is that no prior numerical simulation in the relevant region ofparameter space is needed, which means that these techniques can be used todirect future work. The method is demonstrated for a selection of extremephysical parameters. It is shown that optimal initial orbital frequenciesdepend roughly linearly on the mass of the binary, and therefore usefulaccuracy criteria must depend explicitly on the mass. The results indicate thataccurate estimation of the parameters of stellar-mass black-hole binaries inAdvanced LIGO data or calibration of waveforms for detection will require muchlonger numerical simulations than are currently available or more accuratepost-Newtonian approximations -- or both -- especially for comparable-masssystems with high spin.

Uncertainty in hybrid gravitational waveforms: Optimizing initial orbital frequencies for binary black-hole simulations