2016

Searching for Gravitational Waves from Compact Binaries with Precessing Spins

Harry, Ian, Privitera, Stephen, Bohé, Alejandro et al.

Understand

Current searches for gravitational waves from compact-object binaries with the LIGO and Virgo observatories employ waveform models with spins aligned (or anti-aligned) with the orbital angular momentum.

  • Here, we derive a new statistic to search for compact objects carrying generic (precessing) spins.
  • Applying this statistic, we construct banks of both aligned- and generic-spin templates for binary black holes and neutron-star--black-hole binaries, and compare the effectualness of these banks towards simulated populations of generic-spin systems.
  • We then use these banks in a pipeline analysis of Gaussian noise to measure the increase in background incurred by using generic- instead of aligned-spin banks.

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