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Hypervelocity stars from young stellar clusters in the Galactic Centre
Giacomo Fragione, Roberto Capuzzo-Dolcetta, Pavel Kroupa
The enormous velocities of the so called hypervelocity stars (HVSs) derive, likely, from close interactions with massive black holes, binary stars encounters or supernova explosion…
Transits Probabilities Around Hypervelocity and Runaway Stars
Giacomo Fragione, Idan Ginsburg
In the blooming field of exoplanetary science, NASA's Kepler Space Telescope has revolutionized our understanding of exoplanets. Kepler's very precise and long-duration photometry…
Constraining Milky Way mass with Hypervelocity Stars
Giacomo Fragione, Abraham Loeb
Context. Although a variety of techniques have been employed for determining the Milky Way dark matter halo mass distribution, the range of allowed masses spans both light and heav…
Star Clusters and Super Massive Black Holes: High Velocity Stars Production
Giacomo Fragione, Roberto Capuzzo-Dolcetta
One possible origin of high velocity stars in the Galaxy is that they are the product of the interaction of binary systems and supermassive black holes. We investigate a new produc…