Journal
PHYSICAL REVIEW D
Volume 86, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.86.104063
Keywords
-
Funding
- Austrian Academy of Sciences
- STFC
- Science and Technology Facilities Council [ST/H008438/1, ST/I001085/1]
- Spanish Ministry of Science [FPA-2007-60220]
- Spanish MICINNs [CSD2009-00064]
- STFC [ST/H008438/1, ST/I001085/1, Gravitational Waves] Funding Source: UKRI
- Science and Technology Facilities Council [Gravitational Waves, ST/H008438/1, ST/I001085/1] Funding Source: researchfish
Ask authors/readers for more resources
One of the greatest theoretical challenges in the buildup to the era of second-generation gravitational-wave detectors is the modeling of generic binary waveforms. We introduce an approximation that has the potential to significantly simplify this problem. We show that generic precessing-binary inspiral waveforms (covering a seven-dimensional space of intrinsic parameters) can be mapped to a two-dimensional space of nonprecessing binaries, characterized by the mass ratio and a single effective total spin. The mapping consists of a time-dependent rotation of the waveforms into the quadrupole-aligned frame and is extremely accurate (matches >0.99 with parameter biases in the total spin of Delta chi <= 0.04), even in the case of transitional precession. In addition, we demonstrate a simple method to construct hybrid post-Newtonian-numerical relativity precessing-binary waveforms in the quadrupole-aligned frame and provide evidence that our approximate mapping can be used all the way to the merger. Finally, based on these results, we outline a general proposal for the construction of generic waveform models, which will be the focus of future work.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available