Cosmological Constraints from Strong Gravitational Lensing in Clusters of Galaxies

Jullo, Eric; Natarajan, Priyamvada; Kneib, Jean-Paul; D’Aloisio, Anson; Limousin, M.; Richard, Johan; Schimd, C.

doi:10.1126/science.1185759

Cited by 177 publications

(217 citation statements)

References 38 publications

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“…Clusters of galaxies are the best targets for this approach, as they sometimes have large numbers of lensed sources (see Soucail et al 2004 andJullo et al 2010 for representative observational applications). The difficulty is that the sources with different redshifts also probe different locations in the lens potential, so to derive cosmological results one needs strong constraints on substructure in the lens cluster and in the foreground and background mass distributions.…”

Section: Strong Gravitational Lensesmentioning

confidence: 99%

Observational probes of cosmic acceleration

et al. 2013

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The accelerating expansion of the universe is the most surprising cosmological discovery in many decades, implying that the universe is dominated by some form of "dark energy" with exotic physical properties, or that Einstein's theory of gravity breaks down on cosmological scales. The profound implications of cosmic acceleration have inspired ambitious efforts to understand its origin, with experiments that aim to measure the history of expansion and growth of structure with percent-level precision or higher. We review in detail the four most well established methods for making such measurements: Type Ia supernovae, baryon acoustic oscillations (BAO), weak gravitational lensing, and the abundance of galaxy clusters. We pay particular attention to the systematic uncertainties in these techniques and to strategies for controlling them at the level needed to exploit "Stage IV" dark energy facilities such as BigBOSS, LSST, Euclid, and WFIRST. We briefly review a number of other approaches including redshift-space distortions, the Alcock-Paczynski effect, and direct measurements of the Hubble constant H 0 . We present extensive forecasts for constraints on the dark energy equation of state and parameterized deviations from General Relativity, achievable with Stage III and Stage IV experimental programs that incorporate supernovae, BAO, weak lensing, and cosmic microwave background data. We also show the level of precision required for clusters or other methods to provide constraints competitive with those of these fiducial programs. We emphasize the value of a balanced program that employs several of the most powerful methods in combination, both to cross-check systematic uncertainties and to take advantage of complementary information. Surveys to probe cosmic acceleration produce data sets that support a wide range of scientific investigations, and they continue the longstanding astronomical tradition of mapping the universe in ever greater detail over ever larger scales.

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Section: Strong Gravitational Lensesmentioning

confidence: 99%

Observational probes of cosmic acceleration

et al. 2013

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“…Importantly, lensing also enables the study of distant background galaxies that would be unobservable without the magnification provided by the cluster lens (e.g. Ellis et al 2001; Kneib et al 2004; Richard et al 2008;Bouwens et al 2009;Coe et al 2013), and offers the tantalizing possibility of measuring the geometry of the Universe through the accurate determination of cosmological distances (Soucail, Kneib & Golse 2004;Jullo et al 2010).…”

Section: G R Av I Tat I O Na L L E N S I N Gmentioning

confidence: 99%

“…We targeted the core of this cluster in a VLT/FORS2 spectroscopic programme meant to estimate cosmological parameters from strongly lensed features (Jullo et al 2010). Nine multiply imaged systems were observed in MOS mode during a total of 7.5 h exposure time in the nights between 2011 September 22 and 26 (ESO programme 087.A-0326(A), PI: Jullo).…”

Section: Abell 370mentioning

confidence: 99%

Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies

Richard¹,

Jauzac²,

Limousin³

et al. 2014

Monthly Notices of the Royal Astronomical Society

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223

271

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Citation for published item:i h rdD tF nd t uz D wF nd vimousinD wF nd tulloD iF nd gl¡ ementD fF nd i elingD rF nd unei D tFE F nd etekD rF nd x t r j nD F nd ig miD iF nd vivermoreD F nd fowerD F @PHIRA 9w ss nd m gni( tion m ps for the ru le p e eles ope prontier pields lusters X impli tions for highEredshift studiesF9D wonthly noti es of the oy l estronomi l o ietyFD RRR @IAF ppF PTVEPVWF Further information on publisher's website: Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. ABSTRACTExtending over three Hubble Space Telescope (HST) cycles, the Hubble Frontier Fields (HFF) initiative constitutes the largest commitment ever of HST time to the exploration of the distant Universe via gravitational lensing by massive galaxy clusters. Here, we present models of the mass distribution in the six HFF cluster lenses, derived from a joint strong-and weak-lensing analysis anchored by a total of 88 multiple-image systems identified in existing HST data. The resulting maps of the projected mass distribution and of the gravitational magnification effectively calibrate the HFF clusters as gravitational telescopes. Allowing the computation of search areas in the source plane, these maps are provided to the community to facilitate the exploitation of forthcoming HFF data for quantitative studies of the gravitationally lensed population of background galaxies. Our models of the gravitational magnification afforded by the HFF clusters allow us to quantify the lensing-induced boost in sensitivity over blank-field observations and predict that galaxies at z > 10 and as faint as m(AB) = 32 will be detectable, up to 2 mag fainter than the limit of the Hubble Ultra Deep Field.

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“…Jullo et al (2010) constrained cosmological parameters using 12 multiply-lensed sources behind the cluster Abell 1689, but the sparsity of lensed images and the clumpy mass distribution in clusters makes the measurement difficult; the systematic uncertainties are likely to be large (Zieser & Bartelmann 2012) and much of the information provided by the multiple background sources may need to be used to infer the complexity of the lensing mass distribution. Galaxy-galaxy strong lenses, on the other hand, tend to be very well fitted with simple mass distributions (e.g., Vegetti et al, submitted) and therefore may be preferable objects for testing cosmology.…”

Section: Introductionmentioning

confidence: 99%

Cosmological constraints from the double source plane lens SDSSJ0946+1006

Collett

Auger

2014

Monthly Notices of the Royal Astronomical Society

122

115

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We present constraints on the equation of state of dark energy, w, and the total matter density, Ω M , derived from the double-source-plane strong lens SDSSJ0946+1006, the first cosmological measurement with a galaxy-scale doublesource-plane lens. By modelling the primary lens with an elliptical power-law mass distribution, and including perturbative lensing by the first source, we are able to constrain the cosmological scaling factor in this system to be β −1 = 1.404 ± 0.016, which implies Ω M = 0.33 +0.33 −0.26 for a flat ΛCDM cosmology. Combining with a CMB prior from Planck, we find w = −1.17 +0.20 −0.21 assuming a flat wCDM cosmology. This inference shifts the posterior by 1σ and improves the precision by 30 per cent with respect to Planck alone, and demonstrates the utility of combining simple, galaxy-scale multiple-source-plane lenses with other cosmological probes to improve precision and test for residual systematic biases.

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Cosmological Constraints from Strong Gravitational Lensing in Clusters of Galaxies

Cited by 177 publications

References 38 publications

Observational probes of cosmic acceleration

Observational probes of cosmic acceleration

Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies

Cosmological constraints from the double source plane lens SDSSJ0946+1006

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