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Projection effects in the strong lensing study of subhaloes
Li, Ran1,2; Frenk, Carlos S.3; Cole, Shaun3; Wang, Qiao1; Gao, Liang1
2017-06-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume468Issue:2Pages:1426-1432
AbstractThe defining characteristic of the cold dark matter (CDM) hypothesis is the presence of a very large number of low-mass haloes, too small to have made a visible galaxy. Other hypotheses for the nature of the dark matter, such as warm dark matter (WDM), predict a much smaller number of such low-mass haloes. Strong lensing systems offer the possibility of detecting small-mass haloes through the distortions they induce in the lensed image. Here, we show that the main contribution to the image distortions comes from haloes along the line of sight rather than subhaloes in the lens as has normally been assumed so far. These interlopers enhance the differences between the predictions of CDM and WDM models. We derive the total perturber mass function, including both subhaloes and interlopers, and show that measurements of approximately 20 strong lens systems with a detection limit of M-low = 10(7) h(-1) M-circle dot would distinguish (at 3 sigma) between CDM and a WDM model consisting of 7 keV sterile neutrinos such as those required to explain the recently detected 3.5 keV X-ray emission line from the centres of galaxies and clusters.
SubtypeArticle
KeywordGravitational Lensing: Strong Galaxies: Haloes Dark Matter
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNSFC grant from the Newton Fund(11303033 ; NSFC grant from the Newton Fund(11303033 ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; European Research Council(GA 267291) ; European Research Council(GA 267291) ; Strategic Priority Research Program ; Strategic Priority Research Program ; Emergence of Cosmological Structure of the Chinese Academy of Sciences(XDB09000000) ; Emergence of Cosmological Structure of the Chinese Academy of Sciences(XDB09000000) ; Newton Advanced Fellowship ; Newton Advanced Fellowship ; Science and Technology Facilities Council(ST/L00075X/1) ; Science and Technology Facilities Council(ST/L00075X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; STFC(ST/H008519/1) ; STFC(ST/H008519/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; Durham University ; Durham University ; YIPA of NAOC ; YIPA of NAOC ; NSFC(11133003 ; NSFC(11133003 ; 11511130054 ; 11511130054 ; 11425312) ; 11425312) ; 11333001) ; 11333001) ; NSFC grant from the Newton Fund(11303033 ; NSFC grant from the Newton Fund(11303033 ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; European Research Council(GA 267291) ; European Research Council(GA 267291) ; Strategic Priority Research Program ; Strategic Priority Research Program ; Emergence of Cosmological Structure of the Chinese Academy of Sciences(XDB09000000) ; Emergence of Cosmological Structure of the Chinese Academy of Sciences(XDB09000000) ; Newton Advanced Fellowship ; Newton Advanced Fellowship ; Science and Technology Facilities Council(ST/L00075X/1) ; Science and Technology Facilities Council(ST/L00075X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; STFC(ST/H008519/1) ; STFC(ST/H008519/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; Durham University ; Durham University ; YIPA of NAOC ; YIPA of NAOC ; NSFC(11133003 ; NSFC(11133003 ; 11511130054 ; 11511130054 ; 11425312) ; 11425312) ; 11333001) ; 11333001)
DOI10.1093/mnras/stx554
WOS KeywordWARM DARK-MATTER ; SATELLITE GALAXIES ; MASS FUNCTION ; COPERNICUS COMPLEXIO ; SUBSTRUCTURE ; HALOES ; STATISTICS ; UNIVERSE ; MODELS ; LINE
Indexed BySCI
Language英语
Funding OrganizationNSFC grant from the Newton Fund(11303033 ; NSFC grant from the Newton Fund(11303033 ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; European Research Council(GA 267291) ; European Research Council(GA 267291) ; Strategic Priority Research Program ; Strategic Priority Research Program ; Emergence of Cosmological Structure of the Chinese Academy of Sciences(XDB09000000) ; Emergence of Cosmological Structure of the Chinese Academy of Sciences(XDB09000000) ; Newton Advanced Fellowship ; Newton Advanced Fellowship ; Science and Technology Facilities Council(ST/L00075X/1) ; Science and Technology Facilities Council(ST/L00075X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; STFC(ST/H008519/1) ; STFC(ST/H008519/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; Durham University ; Durham University ; YIPA of NAOC ; YIPA of NAOC ; NSFC(11133003 ; NSFC(11133003 ; 11511130054 ; 11511130054 ; 11425312) ; 11425312) ; 11333001) ; 11333001) ; NSFC grant from the Newton Fund(11303033 ; NSFC grant from the Newton Fund(11303033 ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; European Research Council(GA 267291) ; European Research Council(GA 267291) ; Strategic Priority Research Program ; Strategic Priority Research Program ; Emergence of Cosmological Structure of the Chinese Academy of Sciences(XDB09000000) ; Emergence of Cosmological Structure of the Chinese Academy of Sciences(XDB09000000) ; Newton Advanced Fellowship ; Newton Advanced Fellowship ; Science and Technology Facilities Council(ST/L00075X/1) ; Science and Technology Facilities Council(ST/L00075X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; BIS National E-infrastructure capital grant(ST/K00042X/1) ; STFC(ST/H008519/1) ; STFC(ST/H008519/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; STFC DiRAC Operations grant(ST/K003267/1) ; Durham University ; Durham University ; YIPA of NAOC ; YIPA of NAOC ; NSFC(11133003 ; NSFC(11133003 ; 11511130054 ; 11511130054 ; 11425312) ; 11425312) ; 11333001) ; 11333001)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000399429600014
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8843
Collection星系宇宙学研究部
Affiliation1.Chinese Acad Sci, Key Lab Computat Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Coll Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Univ Durham, Inst Computat Cosmol, Dept Phys, South Rd, Durham DH1 3LE, England
Recommended Citation
GB/T 7714
Li, Ran,Frenk, Carlos S.,Cole, Shaun,et al. Projection effects in the strong lensing study of subhaloes[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,468(2):1426-1432.
APA Li, Ran,Frenk, Carlos S.,Cole, Shaun,Wang, Qiao,&Gao, Liang.(2017).Projection effects in the strong lensing study of subhaloes.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,468(2),1426-1432.
MLA Li, Ran,et al."Projection effects in the strong lensing study of subhaloes".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 468.2(2017):1426-1432.
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