Star clusters and super massive black holes: High velocity stars production

G. Fragione, R. Capuzzo-Dolcetta

Research output: Contribution to journalConference articlepeer-review


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 production channel of high velocity stars as due to the close interaction between a star cluster and supermassive black holes in galactic centres. The high velocity acquired by some stars of the cluster comes from combined effect of extraction of their gravitational binding energy and from the slingshot due to the interaction with the black holes. Stars could reach a velocity sufficient to travel in the halo and even overcome the galactic potential well, while some of them are just stripped from the cluster and start orbiting around the galactic centre.

Original languageEnglish (US)
Pages (from-to)687-688
Number of pages2
JournalMemorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society
Issue number4
StatePublished - 2016
Event2016 Cosmic-Lab Conference: Star Clusters as Cosmic Laboratories for Astrophysics, Dynamics and Fundamental Physics, MODEST 2016 - Bologna, Italy
Duration: Apr 18 2016Apr 22 2016


  • Galaxy: haloes
  • Galaxy: nuclei
  • Galaxy: star clusters
  • Stars: kinematics and dynamics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Radiology Nuclear Medicine and imaging
  • Astronomy and Astrophysics
  • Instrumentation
  • Atomic and Molecular Physics, and Optics


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