• DOI:10.1093/mnras/stac3266
• Corpus ID: 253397940

Final stage of merging binaries of supermassive black holes: observational signatures

@article{Wang2022FinalSO,
  title={Final stage of merging binaries of supermassive black holes: observational signatures},
  author={Jian-Min Wang and Yu-Yang Songsheng and Yan-Rong Li and Pu Du},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2022}
}

• Jian-Min Wang, Yu-Yang Songsheng, +1 author P. Du
• Published 8 November 2022
• Physics
• Monthly Notices of the Royal Astronomical Society

There are increasing interests in binary supermassive black holes (SMBHs), but merging binaries with separations smaller than ∼1 light days (∼102  gravitational radii for 108M⊙), which are rapidly evolving under control of gravitational waves, are elusive in observations. In this paper, we discuss fates of mini-disks around component SMBHs for three regimes: 1) low rates (advection-dominated accretion flows: ADAFs); 2) intermediate rates; 3) super-Eddington accretion rates. Mini-disks with…