Redshift evolution of the Fundamental Plane relation in the IllustrisTNG simulation
文献类型：期刊论文
| 作者 | Lu, Shengdong1,2; Xu, Dandan3,4; Wang, Yunchong3,4,5; Mao, Shude1,3,4; Ge, Junqiang1; Springel, Volker6; Wang, Yuan7; Vogelsberger, Mark8; Jill, Naiman9,10; Hernquist, Lars9 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 492期号:4页码:5930-5939 |
| ISSN号 | 0035-8711 |
| 关键词 | methods: numerical galaxies: elliptical and lenticular, cD galaxy: evolution galaxies: formation galaxy: kinematics and dynamics |
| DOI | 10.1093/mnras/staa173 |
| 英文摘要 | We investigate the Fundamental Plane (FP) evolution of early -type galaxies in the IllustrisTNG100 simulation (TNG100) from redshift z = 0 to z = 2. We find that a tight plane relation already exists as early as z = 2. Its scatter stays as low as 0.08 dex across this redshift range. Both slope parameters b and c (where R a ahf with R, a, and I being the typical size, velocity dispersion, and surface brightness) of the plane evolve mildly since z = 2, roughly consistent with observations. The FP residual Res a + U log a + clog I log R, where a is the zero -point of the FP) is found to strongly correlate with stellar age, indicating that stellar age can he used as a crucial fourth parameter of the FP. However, we find that 4c + + 2 = 6, where 6 0.8 for FPs in TNG, rather than zero as is typically inferred from observations. This implies that a tight power-law relation between the dynamical mass -to -light ratio Mdyn/L and the dynamical mass Mdyn (where Mdyn 5a2R/G, with G being the gravitational constant) is not present in the TNG100 simulation. Recovering such a relation requires proper mixing between dark matter and baryons, as well as star formation occurring with correct efficiencies at the right mass scales. This represents a powerful constraint on the numerical models, which has to be satisfied in future hydrodynamical simulations. |
| WOS关键词 | EARLY-TYPE GALAXIES ; DIGITAL SKY SURVEY ; TO-LIGHT RATIOS ; MULTI-GAUSSIAN EXPANSION ; SUPERMASSIVE BLACK-HOLES ; STAR-FORMATION HISTORIES ; ELLIPTIC GALAXIES ; SIZE EVOLUTION ; LUMINOSITY EVOLUTION ; SCALING RELATIONS |
| 资助项目 | DFG[11761131004] ; NSFC[11761131004] ; National Key Basic Research and Development Program of China[2018YFA0404501] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000518148000096 |
| 资助机构 | DFG ; DFG ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; DFG ; DFG ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; DFG ; DFG ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; DFG ; DFG ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/54300]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Lu, Shengdong |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, 20A Dawn Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China 4.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 5.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 6.Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85748 Garching, Germany 7.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 8.MIT, Dept Phys, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA 9.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA 10.Univ Illinois, Sch Informat Sci, 501 E Daniel St, Champaign, IL 61820 USA |
| 推荐引用方式 GB/T 7714 | Lu, Shengdong,Xu, Dandan,Wang, Yunchong,et al. Redshift evolution of the Fundamental Plane relation in the IllustrisTNG simulation[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,492(4):5930-5939. |
| APA | Lu, Shengdong.,Xu, Dandan.,Wang, Yunchong.,Mao, Shude.,Ge, Junqiang.,...&Hernquist, Lars.(2020).Redshift evolution of the Fundamental Plane relation in the IllustrisTNG simulation.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,492(4),5930-5939. |
| MLA | Lu, Shengdong,et al."Redshift evolution of the Fundamental Plane relation in the IllustrisTNG simulation".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 492.4(2020):5930-5939. |
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来源：国家天文台
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