The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 36 Issue 2
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- Pages.57.2-57.2
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- 2011
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- 1226-2692(pISSN)
A study of sub-galactic scale structure formation with a cosmological hydro code
- Shin, Ji-Hye (Department of Astronomy & Space Science, Kyung Hee University) ;
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Kim, Ju-Han
(Korea Institute for Advanced Study) ;
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Kim, Sung-Soo S.
(Department of Astronomy & Space Science, Kyung Hee University) ;
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Yoon, Suk-Jin
(Center for Space Astrophysics and Department of Astronomy, Yonsei University)
- Published : 2011.10.05
Abstract
To study the formation and evolution of sub-galactic scale structures, we have added SPH (Smoothed Particle Hydrodynamics) method into an existing cosmological PMTree code, GOTPM. To follow the evolution of gas particles, we consider heating/cooling processes, star formation, and energy & metal feedback by supernova explosion. We have performed various tests for the new code and found that the results reproduce observed quantities or follow the known analytic solutions. We present a test simulation of isolated disk galaxy with a focus on whether the star formation reproduces the observed features.
Keywords