热门
NIHAO project - I. Reproducing the inefficiency of galaxy formation across cosmic time with a large sample of cosmological hydrodynamical simulations
文献类型：期刊论文
| 作者 | Wang, Liang1,2,3; Dutton, Aaron A.2; Stinson, Gregory S.2; Maccio, Andrea V.2; Penzo, Camilla1; Kang, Xi1 ; Keller, Ben W.4; Wadsley, James4
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2015-11-21 |
| 卷号 | 454期号:1页码:83-94 |
| 关键词 | methods: numerical galaxies: dwarf galaxies: evolution galaxies: formation galaxies: spiral cosmology: theory |
| 英文摘要 | We introduce project NIHAO (Numerical Investigation of a Hundred Astrophysical Objects), a set of 100 cosmological zoom-in hydrodynamical simulations performed using the GASOLINE code, with an improved implementation of the SPH algorithm. The haloes in our study range from dwarf (M-200 similar to 5 x 10(9) M-circle dot) to Milky Way (M-200 similar to 2 x 10(12) M-circle dot) masses, and represent an unbiased sampling of merger histories, concentrations and spin parameters. The particle masses and force softenings are chosen to resolve the mass profile to below 1 per cent of the virial radius at all masses, ensuring that galaxy half-light radii are well resolved. Using the same treatment of star formation and stellar feedback for every object, the simulated galaxies reproduce the observed inefficiency of galaxy formation across cosmic time as expressed through the stellar mass versus halo mass relation, and the star formation rate versus stellar mass relation. We thus conclude that stellar feedback is the chief piece of physics required to limit the efficiency of star formation in galaxies less massive than the Milky Way. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | INITIAL MASS FUNCTION ; STAR-FORMATION RATES ; DARK-MATTER HALOES ; SMOOTHED-PARTICLE HYDRODYNAMICS ; STELLAR MASS ; LUMINOSITY FUNCTION ; DISK GALAXIES ; FORMATION HISTORIES ; EAGLE SIMULATIONS ; FORMING GALAXIES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000363657000005 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/16033]  |
| 专题 | 紫金山天文台_南极天文中心 |
| 作者单位 | 1.Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Max Planck Inst Astron, D-69117 Heidelberg, Germany 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada |
| 推荐引用方式 GB/T 7714 | Wang, Liang,Dutton, Aaron A.,Stinson, Gregory S.,et al. NIHAO project - I. Reproducing the inefficiency of galaxy formation across cosmic time with a large sample of cosmological hydrodynamical simulations[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,454(1):83-94. |
| APA | Wang, Liang.,Dutton, Aaron A..,Stinson, Gregory S..,Maccio, Andrea V..,Penzo, Camilla.,...&Wadsley, James.(2015).NIHAO project - I. Reproducing the inefficiency of galaxy formation across cosmic time with a large sample of cosmological hydrodynamical simulations.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,454(1),83-94. |
| MLA | Wang, Liang,et al."NIHAO project - I. Reproducing the inefficiency of galaxy formation across cosmic time with a large sample of cosmological hydrodynamical simulations".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 454.1(2015):83-94. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。