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| Paper: |
Ionization and Triggered Star Formation |
| Volume: |
451, 9th Pacific Rim Conference on Stellar Astrophysics |
| Page: |
199 |
| Authors: |
Gritschneder, M.; Lin, D. N. C.; Murray, S.D.; Burkert, A. |
| Abstract: |
We perform a set of high resolution simulations on the impact of the
UV-radiation of massive stars on the turbulent interstellar medium
with the tree-SPH code iVINE. This parameter study includes different
levels and driving scales of the turbulence, different ionizing flux
as well as different temperatures and densities of the cold gas. We
find a clear correlation between the initial state of the turbulent
cloud and the final morphology and physical properties of the
structures adjacent to the HII region. From the simulations we are
able to derive a criterion for the formation of pillar-like structures
and thus the formation of cores and stars. Gravitational collapse
occurs regularly on the tips of the structures. We also derive column
densities and velocity profiles of our simulations and find these to
be in very good agreement with the observations of trunks and
cores. In addition, we investigate the further evolution of the pillars
once the massive star explodes. This leads to a supernova triggered
scenario for the formation of our Solar System. |
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