The Supermassive Black Hole of M87 and the Kinematics of Its Associated Gaseous Disk

@article{Macchetto1997TheSB,
  title={The Supermassive Black Hole of M87 and the Kinematics of Its Associated Gaseous Disk},
  author={Ferdinando Duccio Macchetto and Alessandro Marconi and David J. Axon and Alessandro Capetti and William B. Sparks and Philippe Crane},
  journal={The Astrophysical Journal},
  year={1997},
  volume={489},
  pages={579-600}
}
We have carried out the first HST long-slit observations of a gaseous disk around a candidate super-massive black hole. The results of this study on the kinematics of the gaseous disk in M 87 are a considerable improvement in both spatial resolution and accuracy over previous observations and requires a projected mass of MBH (sin i)2=(2.0±0.5)×109 M⊙ (MBH=3.2×109 M⊙ for a disk inclination i=52°) concentrated within a sphere whose radius is less than 0″.05 (3.5 pc) to explain the observed… 
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