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| Paper: |
Stellar Disc – Dynamical Evolution in a Perturbed Potential |
| Volume: |
439, The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies |
| Page: |
258 |
| Authors: |
Šubr, L. |
| Abstract: |
Models of the origin of young stars in the Galactic
Centre are facing various problems. The most promising scenario of the
star formation in a thin self-gravitating disc naturally forms stars on
coherently rotating orbits, but it fails to explain the
origin of several tens of stars that evidently do not belong to any of
the disc-like structures in the GC. One possible solution lies in rather
complicated initial conditions, assuming at least two infalling and interacting
gas clouds. We present alternative solution showing that a single thin stellar
disc may have given birth to all young stars in the GC. The outliers are
explained as stars that have been stripped from the parent structure
due to the gravitational interaction with the gaseous circum-nuclear disc. |
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