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Substructure and galaxy formation in the Copernicus Complexio warm dark matter simulations
Bose, Sownak1; Hellwing, Wojciech A.2,3; Frenk, Carlos S.1; Jenkins, Adrian1; Lovell, Mark R.4,5; Helly, John C.1; Li, Baojiu1; Gonzalez-Perez, Violeta2; Gao, Liang1,6
2017-02-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume464Issue:4Pages:4520-4533
AbstractWe use the Copernicus Complexio (COCO) high-resolution N-body simulations to investigate differences in the properties of small-scale structures in the standard cold dark matter (CDM) model and in a model with a cutoff in the initial power spectrum of density fluctuations consistent with both a thermally produced warm dark matter (WDM) particle with a rest mass of 3.3 keV and a sterile neutrino with mass 7 keV and leptogenesis parameter L-6 = 8.7. The latter corresponds to the 'coldest' model with this sterile neutrino mass compatible with the identification of the recently detected 3.5 keV X-ray line as resulting from particle decay. CDM and WDM predict very different number densities of subhaloes with mass less than or similar to 10(9) h(-1) M-circle dot although they predict similar, nearly universal, normalized subhalo radial density distributions. Haloes and subhaloes in both models have cuspy Navarro-Frenk-White profiles, but WDM subhaloes below the cut-off scale in the power spectrum (corresponding to maximum circular velocities V (z= 0)(max) <= 50 kms(-1)) are less concentrated than their CDM counterparts. We make predictions for observable properties using the GALFORM semi-analytic model of Galaxy formation. Both models predict Milky Way satellite luminosity functions consistent with observations, although the WDM model predicts fewer very faint satellites. This model, however, predicts slightly more UV bright galaxies at redshift z > 7 than CDM, but both are consistent with observations. Gravitational lensing offers the best prospect of distinguishing between the models.
SubtypeArticle
KeywordMethods: Numerical Galaxies: Evolution Galaxies: High Redshift Dark Matter
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationEuropean Research Council(GA 267291 ; European Research Council(GA 267291 ; Science and Technology Facilities Council(ST/F001166/1 ; Science and Technology Facilities Council(ST/F001166/1 ; Polish National Science Center(UMO-2012/07/D/ST9/02785) ; Polish National Science Center(UMO-2012/07/D/ST9/02785) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; STFC capital grant(ST/H008519/1) ; STFC capital grant(ST/H008519/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; Durham University ; Durham University ; HPC Infrastructure for Grand Challenges of Science and Engineering Project ; HPC Infrastructure for Grand Challenges of Science and Engineering Project ; European Regional Development Fund under the Innovative Economy Operational Programme ; European Regional Development Fund under the Innovative Economy Operational Programme ; Dutch Ministry of Education, Culture and Science (OCW) ; Dutch Ministry of Education, Culture and Science (OCW) ; 646702) ; 646702) ; ST/I00162X/1 ; ST/I00162X/1 ; ST/K501979/1) ; ST/K501979/1) ; European Research Council(GA 267291 ; European Research Council(GA 267291 ; Science and Technology Facilities Council(ST/F001166/1 ; Science and Technology Facilities Council(ST/F001166/1 ; Polish National Science Center(UMO-2012/07/D/ST9/02785) ; Polish National Science Center(UMO-2012/07/D/ST9/02785) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; STFC capital grant(ST/H008519/1) ; STFC capital grant(ST/H008519/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; Durham University ; Durham University ; HPC Infrastructure for Grand Challenges of Science and Engineering Project ; HPC Infrastructure for Grand Challenges of Science and Engineering Project ; European Regional Development Fund under the Innovative Economy Operational Programme ; European Regional Development Fund under the Innovative Economy Operational Programme ; Dutch Ministry of Education, Culture and Science (OCW) ; Dutch Ministry of Education, Culture and Science (OCW) ; 646702) ; 646702) ; ST/I00162X/1 ; ST/I00162X/1 ; ST/K501979/1) ; ST/K501979/1)
DOI10.1093/mnras/stw2686
WOS KeywordMILKY-WAY SATELLITES ; SIMILAR-TO 7 ; HALO OCCUPATION DISTRIBUTION ; UV LUMINOSITY FUNCTION ; REDSHIFT SURVEY ; STERILE NEUTRINOS ; INNER STRUCTURE ; MASS FUNCTION ; LOCAL GROUP ; COSMOLOGICAL SIMULATIONS
Indexed BySCI
Language英语
Funding OrganizationEuropean Research Council(GA 267291 ; European Research Council(GA 267291 ; Science and Technology Facilities Council(ST/F001166/1 ; Science and Technology Facilities Council(ST/F001166/1 ; Polish National Science Center(UMO-2012/07/D/ST9/02785) ; Polish National Science Center(UMO-2012/07/D/ST9/02785) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; STFC capital grant(ST/H008519/1) ; STFC capital grant(ST/H008519/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; Durham University ; Durham University ; HPC Infrastructure for Grand Challenges of Science and Engineering Project ; HPC Infrastructure for Grand Challenges of Science and Engineering Project ; European Regional Development Fund under the Innovative Economy Operational Programme ; European Regional Development Fund under the Innovative Economy Operational Programme ; Dutch Ministry of Education, Culture and Science (OCW) ; Dutch Ministry of Education, Culture and Science (OCW) ; 646702) ; 646702) ; ST/I00162X/1 ; ST/I00162X/1 ; ST/K501979/1) ; ST/K501979/1) ; European Research Council(GA 267291 ; European Research Council(GA 267291 ; Science and Technology Facilities Council(ST/F001166/1 ; Science and Technology Facilities Council(ST/F001166/1 ; Polish National Science Center(UMO-2012/07/D/ST9/02785) ; Polish National Science Center(UMO-2012/07/D/ST9/02785) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; STFC capital grant(ST/H008519/1) ; STFC capital grant(ST/H008519/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; Durham University ; Durham University ; HPC Infrastructure for Grand Challenges of Science and Engineering Project ; HPC Infrastructure for Grand Challenges of Science and Engineering Project ; European Regional Development Fund under the Innovative Economy Operational Programme ; European Regional Development Fund under the Innovative Economy Operational Programme ; Dutch Ministry of Education, Culture and Science (OCW) ; Dutch Ministry of Education, Culture and Science (OCW) ; 646702) ; 646702) ; ST/I00162X/1 ; ST/I00162X/1 ; ST/K501979/1) ; ST/K501979/1)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000393780500054
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8242
Collection星系宇宙学研究部
Affiliation1.Univ Durham, Inst Computat Cosmol, South Rd, Durham DH1 3LE, England
2.Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England
3.Univ Zielona Gora, Janusz Gil Inst Astron, Ul Szafrana 2, PL-65516 Zielona Gora, Poland
4.Univ Amsterdam, GRAPPA Inst, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
5.Inst Lorentz Theoret Phys, Niels Bohrweg 2, NL-2333 CA Leiden, Netherlands
6.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Bose, Sownak,Hellwing, Wojciech A.,Frenk, Carlos S.,et al. Substructure and galaxy formation in the Copernicus Complexio warm dark matter simulations[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,464(4):4520-4533.
APA Bose, Sownak.,Hellwing, Wojciech A..,Frenk, Carlos S..,Jenkins, Adrian.,Lovell, Mark R..,...&Gao, Liang.(2017).Substructure and galaxy formation in the Copernicus Complexio warm dark matter simulations.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,464(4),4520-4533.
MLA Bose, Sownak,et al."Substructure and galaxy formation in the Copernicus Complexio warm dark matter simulations".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 464.4(2017):4520-4533.
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