Hints of Spin-Orbit Resonances in the Binary Black Hole Population.

@article{Varma2022HintsOS,
  title={Hints of Spin-Orbit Resonances in the Binary Black Hole Population.},
  author={Vijay Varma and Sylvia Biscoveanu and Maximiliano Isi and Will M. Farr and Salvatore Vitale},
  journal={Physical review letters},
  year={2022},
  volume={128 3},
  pages={
          031101
        }
}
Binary black hole spin measurements from gravitational wave observations can reveal the binary's evolutionary history. In particular, the spin orientations of the component black holes within the orbital plane, ϕ_{1} and ϕ_{2}, can be used to identify binaries caught in the so-called spin-orbit resonances. In a companion paper, we demonstrate that ϕ_{1} and ϕ_{2} are best measured near the merger of the two black holes. In this work, we use these spin measurements to provide the first… 

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Vijay Varma,1, 2, ∗ Maximiliano Isi,3, 4, † Sylvia Biscoveanu,3, 4 Will M. Farr,5, 6 and Salvatore Vitale3, 4 1Department of Physics, Cornell University, Ithaca, New York 14853, USA 2Cornell Center
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References

SHOWING 1-10 OF 69 REFERENCES
Distinguishing black-hole spin-orbit resonances by their gravitational-wave signatures
If binary black holes form following the successive core collapses of sufficiently massive binary stars, precessional dynamics may align their spins, S1 and S2, and the orbital angular momentum L
Resonant-plane locking and spin alignment in stellar-mass black-hole binaries: A diagnostic of compact-binary formation
We study the influence of astrophysical formation scenarios on the precessional dynamics of spinning black-hole binaries by the time they enter the observational window of second- and
Determining the population properties of spinning black holes
There are at least two formation scenarios consistent with the first gravitational-wave observations of binary black hole mergers. In field models, black hole binaries are formed from stellar
Spin-orbit resonance and the evolution of compact binary systems
Starting with a post-Newtonian description of compact binary systems, we derive a set of equations that describes the evolution of the orbital angular momentum and both spin vectors during inspiral.
Effects of post-Newtonian spin alignment on the distribution of black-hole recoils
Recent numerical relativity simulations have shown that the final black hole produced in a binary merger can recoil with a velocity as large as 5,000 km/s. Because of enhanced gravitational-wave
RELATIVISTIC SUPPRESSION OF BLACK HOLE RECOILS
Numerical-relativity simulations indicate that the black hole produced in a binary merger can recoil with a velocity up to vmax ≃ 4000 km s−1 with respect to the center of mass of the initial binary.
Exploring black hole superkicks
Recent calculations of the recoil velocity in black-hole binary mergers have found kick velocities of ≈2500  km/s for equal-mass binaries with antialigned initial spins in the orbital plane. In
Effective potentials and morphological transitions for binary black hole spin precession.
TLDR
An effective potential for binary black hole (BBH) spin precession at second post-Newtonian order is derived and a precession-averaged evolution equation for the total angular momentum is derived, which will help efforts to model and interpret gravitational waves from generic BBH mergers and predict the distributions of final spins and gravitational recoils.
High-Accuracy Mass, Spin, and Recoil Predictions of Generic Black-Hole Merger Remnants.
We present accurate fits for the remnant properties of generically precessing binary black holes, trained on large banks of numerical-relativity simulations. We use Gaussian process regression to
Population Properties of Compact Objects from the Second LIGO–Virgo Gravitational-Wave Transient Catalog
We report on the population of 47 compact binary mergers detected with a false-alarm rate of < in the second LIGO–Virgo Gravitational-Wave Transient Catalog. We observe several characteristics of the
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