PMO OpenIR
ELUCID. V. Lighting Dark Matter Halos with Galaxies
Yang, Xiaohu1,2,3; Zhang, Youcai4; Wang, Huiyuan5,6; Liu, Chengze1; Lu, Tianhuan7; Li, Shijie1; Shi, Feng4; Jing, Y. P.1,2,3; Mo, H. J.8,9,10; van den Bosch, Frank C.11; Kang, Xi12; Cui, Weiguang13; Guo, Hong4; Li, Guoliang11; Lim, S. H.8; Lu, Yi4; Luo, Wentao1; Wei, Chengliang11; Yang, Lei1
2018-06-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume860Issue:1Pages:17
Abstract

In a recent study, using the distribution of galaxies in the north galactic pole of the SDSS DR7 region enclosed in a 500 h(-1) Mpc box, we carried out our ELUCID simulation (ELUCID III). Here, we light the dark matter halos and subhalos in the reconstructed region in the simulation with galaxies in the SDSS observations using a novel neighborhood abundance matching method. Before we make use of the galaxy-subhalo connections established in the ELUCID simulation to evaluate galaxy formation models, we set out to explore the reliability of such a link. For this purpose, we focus on the following few aspects of galaxies: (1) the central-subhalo luminosity and mass relations, (2) the satellite fraction of galaxies, (3) the conditional luminosity function (CLF) and conditional stellar mass function (CSMF) of galaxies, and (4) the cross-correlation functions between galaxies and dark matter particles, most of which are measured separately for all, red, and blue galaxy populations. We find that our neighborhood abundance matching method accurately reproduces the central-subhalo relations, satellite fraction, and the CLFs, CSMFs, and biases of galaxies. These features ensure that galaxy-subhalo connections thus established will be very useful in constraining galaxy formation processes. We provide some suggestions for the three levels of using the galaxy-subhalo pairs for galaxy formation constraints. The galaxy-subhalo links and the subhalo merger trees in the SDSS DR7 region extracted from our ELUCID simulation are available upon request.

Keyworddark matter galaxies: halos large-scale structure of universe methods: statistical
DOI10.3847/1538-4357/aac2ce
WOS KeywordDIGITAL SKY SURVEY ; LARGE-SCALE STRUCTURE ; PAIRWISE VELOCITY DISPERSION ; STELLAR MASS FUNCTIONS ; OCCUPATION DISTRIBUTION ; CONSTRAINED SIMULATIONS ; LOCAL SUPERCLUSTER ; SATELLITE GALAXIES ; INITIAL CONDITIONS ; REAL UNIVERSE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000434675500002
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/24073
Collection中国科学院紫金山天文台
Corresponding AuthorYang, Xiaohu
Affiliation1.Shanghai Jiao Tong Univ, Dept Astron, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China
2.Shanghai Jiao Tong Univ, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China
3.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China
4.Shanghai Astron Observ, Nandan Rd 80, Shanghai 200030, Peoples R China
5.Univ Sci & Technol China, Dept Astron, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China
6.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China
7.Shanghai Jiao Tong Univ, Zhiyuan Coll, Shanghai 200240, Peoples R China
8.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA
9.Tsinghua Univ, Dept Astron, Beijing 10084, Peoples R China
10.Tsinghua Univ, Ctr Astrophys, Beijing 10084, Peoples R China
11.Yale Univ, Astron Dept, POB 208101, New Haven, CT 06520 USA
12.Partner Grp MPI Astron, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
13.Univ Autonoma Madrid, Fac Ciencias, Dept Fis Teor, Modulo 15, E-28049 Madrid, Spain
Recommended Citation
GB/T 7714
Yang, Xiaohu,Zhang, Youcai,Wang, Huiyuan,et al. ELUCID. V. Lighting Dark Matter Halos with Galaxies[J]. ASTROPHYSICAL JOURNAL,2018,860(1):17.
APA Yang, Xiaohu.,Zhang, Youcai.,Wang, Huiyuan.,Liu, Chengze.,Lu, Tianhuan.,...&Yang, Lei.(2018).ELUCID. V. Lighting Dark Matter Halos with Galaxies.ASTROPHYSICAL JOURNAL,860(1),17.
MLA Yang, Xiaohu,et al."ELUCID. V. Lighting Dark Matter Halos with Galaxies".ASTROPHYSICAL JOURNAL 860.1(2018):17.
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