Hypervelocity Stars: Predicting the Spectrum of Ejection Velocities

  title={Hypervelocity Stars: Predicting the Spectrum of Ejection Velocities},
  author={Benjamin C. Bromley and Scott J. Kenyon and Margaret J. Geller and Elliott Barcikowski and Warren R. Brown and M. O. Utah and Smithsonian Astrophysical Observatory},
  journal={The Astrophysical Journal},
The disruption of binary stars by the tidal field of the black hole in the Galactic center can produce the hypervelocity stars observed in the halo. We use numerical models to simulate the full spectrum of observable velocities of stars ejected into the halo by this binary disruption process. Our models include a range of parameters for binaries with 3-4 M☉ primaries, consideration of radial orbits of the ejected stars through an approximate mass distribution for the Galaxy, and the impact of… 

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