Predicting the hypervelocity star population in Gaia

  title={Predicting the hypervelocity star population in Gaia},
  author={Tommaso Marchetti and Omar Contigiani and Elena Maria Rossi and Joshua G. Albert and A. G. A. Brown and Alberto Sesana},
  journal={Monthly Notices of the Royal Astronomical Society},
Hypervelocity stars (HVSs) are amongst the fastest objects in our Milky Way. These stars are predicted to come from the Galactic center (GC) and travel along unbound orbits across the Galaxy. In the coming years, the ESA satellite Gaia will provide the most complete and accurate catalogue of the Milky Way, with full astrometric parameters for more than $1$ billion stars. In this paper, we present the expected sample size and properties (mass, magnitude, spatial, velocity distributions) of HVSs… Expand
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