GALACTICUS: A semi-analytic model of galaxy formation

被引：268
|
作者：
Benson, Andrew J. [1 ]
机构：
[1] CALTECH, Pasadena, CA 91125 USA
来源：
NEW ASTRONOMY | 2012年 / 17卷 / 02期
关键词：
Galaxies; Cosmology; Galactic structure; Galaxy evolution; Galaxy formation; DARK-MATTER HALOES; INITIAL MASS FUNCTION; BLACK-HOLES; LUMINOSITY FUNCTION; PARTICLE HYDRODYNAMICS; SATELLITE GALAXIES; STELLAR EVOLUTION; REDSHIFT SURVEY; STAR-FORMATION; DISK GALAXIES;
D O I：
10.1016/j.newast.2011.07.004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We describe a new, free and open source semi-analytic model of galaxy formation, GALACTICUS. The GALACTICUS model was designed to be highly modular to facilitate expansion and the exploration of alternative descriptions of key physical ingredients. We detail the GALACTICUS engine for evolving galaxies through a merging hierarchy of dark matter halos and give details of the specific implementations of physics currently available in GALACTICUS. Finally, we show results from an example model that is in reasonably good agreement with several observational datasets. We use this model to explore numerical convergence and to demonstrate the types of information which can be extracted from GALACTICUS. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：175 / 197
页数：23
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