| Stellar and HI Mass Functions Predicted by a Simple Preheating Galaxy Formation Model |
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| 作者姓名： | Zhi-Jian Luo Cheng-Gang Shu |
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| 作者单位： | Zhi-Jian Luo1 and Cheng-Gang Shu2，3 1 Department of Physics，Jiangxi Normal University，Nanchang 330022; 2 Joint Center for Astrophysics，Shanghai Normal University，Shanghai 200234 3 Shanghai Astronomical Observatory，Chinese Academy of Sciences，Shanghai 200030 |
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| 基金项目： | 国家自然科学基金;上海市自然科学基金 |
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| 摘 要： | According to the new preheating mechanism of galaxy formation suggested by Mo et al., we construct a simple model of formation of disk galaxies within the current paradigm of galaxy formation. It incorporates preheating, gas cooling, bulge formation and star for-mation. The predicted stellar and HI mass functions of galaxies are discussed and compared with the observations. It is found that our model can roughly match both the observed galaxy luminosity function and the observed HI-mass function.
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| 关 键 词： | galaxies: halos — galaxies: formation — galaxies: bulges — galaxies: cooling flows |
| 修稿时间： | 2006-11-25 |
Stellar and HI Mass Functions Predicted by a Simple Preheating Galaxy Formation Model |
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| Zhi-Jian Luo Cheng-Gang Shu.Stellar and HI Mass Functions Predicted by a Simple Preheating Galaxy Formation Model[J].Chinese Journal of Astronomy and Astrophysics,2007,7(4):590-594. |
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| Authors: | Zhi-Jian Luo Cheng-Gang Shu |
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| Abstract: | According to the new preheating mechanism of galaxy formation suggested by Mo et al., we construct a simple model of formation of disk galaxies within the current paradigm of galaxy formation. It incorporates preheating, gas cooling, bulge formation and star for-mation. The predicted stellar and HI mass functions of galaxies are discussed and compared with the observations. It is found that our model can roughly match both the observed galaxy luminosity function and the observed HI-mass function. |
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| Keywords: | galaxies: halos - galaxies: formation - galaxies: bulges - galaxies: cooling flows |
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