Commit 4c6e05a5 authored by Committed by Sebastian KhanBrowse files
Implement SEOBNRv4T surrogate model
Frequency domain surrogate of the time-domain SEOBNRv4T effective-one-body waveform model for spin-aligned binary neutron stars including overall tidal deformability using universal relations. At low frequencies the approximant returns spline interpolated TaylorF2 on sparse grids. At higher frequencies the waveform consists of TaylorF2 + surrogate amplitude and phase corrections to approximate SEOBNRv4T (previously called TEOBv4). TaylorF2 is evaluate once on a sparse grid. The HDF5 data file contains the GPR surrogate training data and sparse grids tailored to linear or cubic spline interpolation. Here we subtract off the 3PN spin-spin term that is not included in SEOBNRv4T. The quadrupole monopole parameters are set using universal relations. Add coordinate transformation between lambda and xi. Implement pn_ss3 using TF2 functions.
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