Speeding up the detectability of the harmonic-space galaxy bispectrum

@article{Montanari2021SpeedingUT,
  title={Speeding up the detectability of the harmonic-space galaxy bispectrum},
  author={Francesco Montanari and Stefano Camera},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2021},
  volume={2021},
  pages={002 - 002}
}
We present a method that allows us for the first time to estimate the signal-to-noise ratio (SNR) of the harmonic-space galaxy bispectrum induced by gravity, a complementary probe to already well established Fourier-space clustering analyses. We show how to do it considering only ∼1000 triangle configurations in multipole space, corresponding to a computational speedup of a factor 𝒪(102)−𝒪(103), depending on the redshift bin, when including mildly non-linear scales. Assuming observational… 
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