Most Black Holes Are Born Very Slowly Rotating

@article{Fuller2019MostBH,
  title={Most Black Holes Are Born Very Slowly Rotating},
  author={Jim Fuller and Linhao Ma},
  journal={The Astrophysical Journal},
  year={2019}
}
The age of gravitational wave (GW) astronomy has begun, and black hole (BH) mergers detected by LIGO are providing novel constraints on massive star evolution. A major uncertainty in stellar theory is the angular momentum (AM) transport within the star that determines its core rotation rate and the resulting BH's spin. Internal rotation rates of low-mass stars measured from asteroseismology prove that AM transport is efficient, suggesting that massive stellar cores may rotate slower than prior… 

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