Abstract
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 language | English (US) |
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Pages (from-to) | 687-688 |
Number of pages | 2 |
Journal | Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society |
Volume | 87 |
Issue number | 4 |
State | Published - 2016 |
Event | 2016 Cosmic-Lab Conference: Star Clusters as Cosmic Laboratories for Astrophysics, Dynamics and Fundamental Physics, MODEST 2016 - Bologna, Italy Duration: Apr 18 2016 → Apr 22 2016 |
Keywords
- 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