GW190521: Orbital Eccentricity and Signatures of Dynamical Formation in a Binary Black Hole Merger Signal

@article{RomeroShaw2020GW190521OE,
  title={GW190521: Orbital Eccentricity and Signatures of Dynamical Formation in a Binary Black Hole Merger Signal},
  author={Isobel M. Romero-Shaw and Paul D. Lasky and Eric Thrane and Juan Calder{\'o}n Bustillo},
  journal={arXiv: High Energy Astrophysical Phenomena},
  year={2020}
}
Pair instability supernovae are thought to restrict the formation of black holes in the mass range ~50 - 135 solar masses. However, black holes with masses within this "high mass gap" are expected to form as the remnants of binary black hole mergers. These remnants can merge again dynamically in densely populated environments such as globular clusters. The hypothesis that the binary black hole merger GW190521 formed dynamically is supported by its high mass. Orbital eccentricity can also be a… 

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