Effects of Supernova Feedback on the Formation of Galaxies

被引：0
作者：
Scannapieco, Cecilia [1 ]
Tissera, Patricia B. [2 ]
White, Simon D. M. [1 ]
Springel, Volker [1 ]
机构：
[1] Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85748 Garching, Germany
[2] Inst Astron & Fis Espacio, RA-1428 Buenos Aires, DF, Argentina
来源：
GALAXY DISK IN COSMOLOGICAL CONTEXT, PROCEEDINGS OF THE 254TH SYMPOSIUM OF THE IAU | 2009年 / 254期
关键词：
galaxies: formation; galaxies: evolution; methods: n-body simulations; PARTICLE HYDRODYNAMICS SIMULATIONS; DARK-MATTER UNIVERSE; METAL ENRICHMENT; MULTIPHASE MODEL; DISK GALAXY; CODE;
D O I：
10.1017/S1743921308027828
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the effects of Supernova (SN) feedback on the formation of galaxies using hydrodynamical simulations in a ACDM cosmology. We use an extended version of the code GADGET-2 which includes chemical enrichment and energy feedback by Type II and Type Ia SN, metal-dependent cooling and a. multiphase model for the gas component. We focus oil the effects of SN feedback oil the star formation process, galaxy morphology, evolution of the specific angular momentum and chemical properties. We find that SN feedback plays a fundamental role in galaxy evolution, producing a self-regulated cycle for star formation, preventing the early consumption of gas and allowing disks to form at, late times. The SN feedback model is able to reproduce the expected dependence on virial mass, with less massive systems being more strongly affected.
引用
收藏
页码：369 / +
页数：2
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