Constraints on warm dark matter from weak lensing in anomalous quadruple lenses

Abstract

We investigate the weak lensing effect by line-of-sight structures with a surface mass density of <~10^8 solar mass/arcsec^2 in QSO-galaxy quadruple lens systems. Using high-resolution N-body simulations in warm dark matter (WDM) models and observed four quadruple lenses that show anomalies in the flux ratios, we obtain constraints on the mass of thermal WDM, m_WDM>= 1.3keV(95%CL) assuming that the density of the primary lens is described by a singular isothermal ellipsoid (SIE). The obtained constraint is consistent with those from Lyman-$\alpha$ forests and the number counts of high-redshift galaxies at z>4. Our results show that WDM with a free-streaming comoving wavenumber k_{fs} <= 27 h/Mpc is disfavored as the major component of cosmological density at redshifts 0.5 <~ z <~ 4 provided that the SIE models describe the gravitational potentials of the primary lenses correctly.

14 pages, 8 figures, version accepted in MNRAS. Information about k_cut is added in table 5 and figure 4

References in corpus (10)

• Transients from Initial Conditions in Cosmological Simulations
• Can sterile neutrinos be the dark matter?
• Discreteness effects in simulations of Hot/Warm dark matter
• Hierarchical Formation of Dark Matter Halos and the Free Streaming Scale
• High resolution imaging of the anomalous flux-ratio gravitational lens system CLASS B2045+265: Dark or luminous satellites?
• The High-$z$ Universe Confronts Warm Dark Matter: Galaxy Counts, Reionization and the Nature of Dark Matter
• The role of luminous substructure in the gravitational lens system MG 2016+112
• Radio, optical and infrared observations of CLASS B0128+437
• Constraining Warm Dark Matter using QSO gravitational lensing
• Parity Dependence in Strong Lens Systems as a Probe of Dark Matter Substructure

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