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Constraints on the identity of the dark matter from strong gravitational lenses

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Constraints on the identity of the dark matter from strong gravitational lenses. / Li, Ran; Frenk, Carlos; Cole, Shaun; Gao, Liang; Bose, Sownak; Hellwing, Wojciech.

In: Monthly Notices of the Royal Astronomical Society, Vol. 460, No. 1, 21.07.2016, p. 363-372.

Research output: Contribution to journalArticle

Harvard

Li, R, Frenk, C, Cole, S, Gao, L, Bose, S & Hellwing, W 2016, 'Constraints on the identity of the dark matter from strong gravitational lenses', Monthly Notices of the Royal Astronomical Society, vol. 460, no. 1, pp. 363-372. https://doi.org/10.1093/mnras/stw939

APA

Li, R., Frenk, C., Cole, S., Gao, L., Bose, S., & Hellwing, W. (2016). Constraints on the identity of the dark matter from strong gravitational lenses. Monthly Notices of the Royal Astronomical Society, 460(1), 363-372. https://doi.org/10.1093/mnras/stw939

Vancouver

Li R, Frenk C, Cole S, Gao L, Bose S, Hellwing W. Constraints on the identity of the dark matter from strong gravitational lenses. Monthly Notices of the Royal Astronomical Society. 2016 Jul 21;460(1):363-372. https://doi.org/10.1093/mnras/stw939

Author

Li, Ran ; Frenk, Carlos ; Cole, Shaun ; Gao, Liang ; Bose, Sownak ; Hellwing, Wojciech. / Constraints on the identity of the dark matter from strong gravitational lenses. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 460, No. 1. pp. 363-372.

Bibtex

@article{ef7a5644c93b4b9494324713bfc81979,
title = "Constraints on the identity of the dark matter from strong gravitational lenses",
abstract = "The cold dark matter (CDM) cosmological model unambiguously predicts that a large number of haloes should survive as subhaloes when they are accreted into a larger halo. The CDM model would be ruled out if such substructures were shown not to exist. By contrast, if the dark matter consists of warm particles (WDM), then below a threshold mass that depends on the particle mass far fewer substructures would be present. Finding subhaloes below a certain mass would then rule out warm particle masses below some value. Strong gravitational lensing provides a clean method to measure the subhalo mass function through distortions in the structure of Einstein rings and giant arcs.Using mock lensing observations constructed from high-resolution N-body simulations, we show that measurements of approximately 100 strong lens systems with a detection limit of 10^7h−1M⊙ would clearly distinguish CDM from WDM in the case where this consists of 7 keV sterile neutrinos such as those that might be responsible for the 3.5 keV X-ray emission line recently detected in galaxies and clusters.",
keywords = "Dark matter, gravitational lensing: strong, galaxy: substructure, RCUK, STFC, ST/K00090/1, ST/L00075X/1, ST/K00042X/1, ST/H008519/1, ST/K003267/1",
author = "Ran Li and Carlos Frenk and Shaun Cole and Liang Gao and Sownak Bose and Wojciech Hellwing",
year = "2016",
month = "7",
day = "21",
doi = "10.1093/mnras/stw939",
language = "English",
volume = "460",
pages = "363--372",
journal = "MNRAS",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "1",

}

RIS

TY - JOUR

T1 - Constraints on the identity of the dark matter from strong gravitational lenses

AU - Li, Ran

AU - Frenk, Carlos

AU - Cole, Shaun

AU - Gao, Liang

AU - Bose, Sownak

AU - Hellwing, Wojciech

PY - 2016/7/21

Y1 - 2016/7/21

N2 - The cold dark matter (CDM) cosmological model unambiguously predicts that a large number of haloes should survive as subhaloes when they are accreted into a larger halo. The CDM model would be ruled out if such substructures were shown not to exist. By contrast, if the dark matter consists of warm particles (WDM), then below a threshold mass that depends on the particle mass far fewer substructures would be present. Finding subhaloes below a certain mass would then rule out warm particle masses below some value. Strong gravitational lensing provides a clean method to measure the subhalo mass function through distortions in the structure of Einstein rings and giant arcs.Using mock lensing observations constructed from high-resolution N-body simulations, we show that measurements of approximately 100 strong lens systems with a detection limit of 10^7h−1M⊙ would clearly distinguish CDM from WDM in the case where this consists of 7 keV sterile neutrinos such as those that might be responsible for the 3.5 keV X-ray emission line recently detected in galaxies and clusters.

AB - The cold dark matter (CDM) cosmological model unambiguously predicts that a large number of haloes should survive as subhaloes when they are accreted into a larger halo. The CDM model would be ruled out if such substructures were shown not to exist. By contrast, if the dark matter consists of warm particles (WDM), then below a threshold mass that depends on the particle mass far fewer substructures would be present. Finding subhaloes below a certain mass would then rule out warm particle masses below some value. Strong gravitational lensing provides a clean method to measure the subhalo mass function through distortions in the structure of Einstein rings and giant arcs.Using mock lensing observations constructed from high-resolution N-body simulations, we show that measurements of approximately 100 strong lens systems with a detection limit of 10^7h−1M⊙ would clearly distinguish CDM from WDM in the case where this consists of 7 keV sterile neutrinos such as those that might be responsible for the 3.5 keV X-ray emission line recently detected in galaxies and clusters.

KW - Dark matter

KW - gravitational lensing: strong

KW - galaxy: substructure

KW - RCUK

KW - STFC

KW - ST/K00090/1

KW - ST/L00075X/1

KW - ST/K00042X/1

KW - ST/H008519/1

KW - ST/K003267/1

U2 - 10.1093/mnras/stw939

DO - 10.1093/mnras/stw939

M3 - Article

VL - 460

SP - 363

EP - 372

JO - MNRAS

JF - MNRAS

SN - 0035-8711

IS - 1

ER -

ID: 4007228