Stochastic Gravitational Wave Background from Coalescing Binary Black Holes

  title={Stochastic Gravitational Wave Background from Coalescing Binary Black Holes},
  author={Xing-Jiang Zhu and E J Howell and Tania Regimbau and David G Blair and Zong-hong Zhu},
  journal={The Astrophysical Journal},
We estimate the stochastic gravitational wave (GW) background signal from the field population of coalescing binary stellar mass black holes (BHs) throughout the universe. This study is motivated by recent observations of BH-Wolf-Rayet (WR) star systems and by new estimates in the metallicity abundances of star-forming galaxies that imply BH-BH systems are more common than previously assumed. Using recent analytical results of the inspiral-merger-ringdown waveforms for coalescing binary BH… 

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