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Confronting theoretical models with the observed evolution of the galaxy population out to z=4
文献类型：期刊论文
| 作者 | Henriques, Bruno M. B.1; White, Simon D. M.1; Lemson, Gerard1; Thomas, Peter A.2; Guo, Qi3,4 ; Marleau, Gabriel-Dominique1,5; Overzier, Roderik A.1
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2012-04-01 |
| 卷号 | 421期号:4页码:2904-2916 |
| 关键词 | methods: numerical methods: statistical stars: AGB and post-AGB galaxies: evolution galaxies: formation galaxies: high-redshift |
| 英文摘要 | We construct light cones for the semi-analytic galaxy formation simulation of Guo et al. and make mock catalogues for comparison with deep high-redshift surveys. Photometric properties are calculated with two different stellar population synthesis codes in order to study sensitivity to this aspect of the modelling. The catalogues are publicly available and include photometry for a large number of observed bands from 4000 angstrom to 6 mu m, as well as rest-frame photometry and other intrinsic properties of the galaxies (e.g. positions, peculiar velocities, stellar masses, sizes, morphologies, gas fractions, star formation rates, metallicities, halo properties). Guo et al. tuned their model to fit the low-redshift galaxy population but noted that at z= 1 it overpredicts the abundance of galaxies below the knee of the stellar mass function. Here we extend the comparison to deep galaxy counts in the B, i, J, K and IRAC 3.6, 4.5 and 5.8 mu m bands, to the redshift distributions of K and 5.8 mu m selected galaxies, the evolution of rest-frame luminosity functions in the B and K bands and the evolution of rest-frame optical versus near-infrared colours. The B, i and J counts are well reproduced, but at longer wavelengths the overabundant high-redshift galaxies produce excess faint counts. At bright magnitudes, counts in the IRAC bands are underpredicted, reflecting overly low stellar metallicities and the neglect of polycyclic aromatic hydrocarbon emission. The predicted redshift distributions for K and 5.8 mu m selected samples highlight the effect of emission from thermally pulsing asymptotic giant branch (AGB) stars. The full treatment of the Maraston model predicts three times as many z similar to 2 galaxies in faint 5.8 mu m selected samples as the model of Bruzual & Charlot, whereas the two models give similar predictions for K-band selected samples. Although luminosity functions are adequately reproduced out to z similar to 3 in rest-frame B, the same is true at rest-frame K only if thermally pulsating AGB emission is included, and then only at high luminosity. Fainter than L?, the two synthesis models agree but overpredict the number of galaxies, another reflection of the overabundance of similar to 1010 M? model galaxies at z= 1. The model predicts that red, passive galaxies should already be in place at z= 2 as required by observations. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000302620700016 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6325]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Max Planck Inst Astrophys, D-85741 Garching, Germany 2.Univ Sussex, Ctr Astron, Brighton BN1 9QH, E Sussex, England 3.Chinese Acad Sci, Partner Grp, Max Planck Inst Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China 4.Univ Durham, Dept Phys, Inst Computat Cosmol, Durham DH1 3LE, England 5.McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada |
| 推荐引用方式 GB/T 7714 | Henriques, Bruno M. B.,White, Simon D. M.,Lemson, Gerard,et al. Confronting theoretical models with the observed evolution of the galaxy population out to z=4[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,421(4):2904-2916. |
| APA | Henriques, Bruno M. B..,White, Simon D. M..,Lemson, Gerard.,Thomas, Peter A..,Guo, Qi.,...&Overzier, Roderik A..(2012).Confronting theoretical models with the observed evolution of the galaxy population out to z=4.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,421(4),2904-2916. |
| MLA | Henriques, Bruno M. B.,et al."Confronting theoretical models with the observed evolution of the galaxy population out to z=4".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 421.4(2012):2904-2916. |
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来源：国家天文台
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