A new hybrid framework to efficiently model lines of sight to gravitational lenses
TLDR
In this paper, the authors develop a framework for multiplane lensing that can handle an arbitrary combination of tidal planes treated with shear and convergence and planes treated exactly (i.e., including higher order terms).Abstract:
In strong gravitational lens systems, the light bending is usually dominated by one main galaxy, but may be affected by other mass along the line of sight (LOS). Shear and convergence can be used to approximate the contributions from less significant perturbers (e.g. those that are projected far from the lens or have a small mass), but higher order effects need to be included for objects that are closer or more massive. We develop a framework for multiplane lensing that can handle an arbitrary combination of tidal planes treated with shear and convergence and planes treated exactly (i.e., including higher order terms). This framework addresses all of the traditional lensing observables including image positions, fluxes, and time delays to facilitate lens modelling that includes the non-linear effects due to mass along the LOS. It balances accuracy (accounting for higher-order terms when necessary) with efficiency (compressing all other LOS effects into a set of matrices that can be calculated up front and cached for lens modelling). We identify a generalized multiplane mass sheet degeneracy, in which the effective shear and convergence are sums over the lensing planes with specific, redshift-dependent weighting factors.read more
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H0LiCOW – XIII. A 2.4 per cent measurement of H0 from lensed quasars: 5.3σ tension between early- and late-Universe probes
Kenneth C. Wong,Sherry H. Suyu,Sherry H. Suyu,Sherry H. Suyu,Geoff C. F. Chen,Cristian E. Rusu,Cristian E. Rusu,M. Millon,Dominique Sluse,Vivien Bonvin,Christopher D. Fassnacht,Stefan Taubenberger,Matthew W. Auger,Simon Birrer,James H. H. Chan,Frederic Courbin,Stefan Hilbert,O. Tihhonova,Tommaso Treu,Adriano Agnello,Xuheng Ding,Inh Jee,Eiichiro Komatsu,Eiichiro Komatsu,Anowar J. Shajib,Alessandro Sonnenfeld,Roger Blandford,Léon V. E. Koopmans,Philip J. Marshall,Georges Meylan +29 more
TL;DR: In this paper, the authors present a measurement of the Hubble constant and other cosmological parameters from a joint analysis of six gravitationally lensed quasars with measured time delays.
Journal ArticleDOI
H0LiCOW - V. New COSMOGRAIL time delays of HE 0435-1223: H0 to 3.8 per cent precision from strong lensing in a flat ΛCDM model
Vivien Bonvin,Frederic Courbin,Sherry H. Suyu,Sherry H. Suyu,Sherry H. Suyu,Philip J. Marshall,Cristian E. Rusu,Dominique Sluse,M. Tewes,Kenneth C. Wong,Thomas E. Collett,Christopher D. Fassnacht,Tommaso Treu,Matthew W. Auger,Stefan Hilbert,Léon V. E. Koopmans,G. Meylan,N. Rumbaugh,Alessandro Sonnenfeld,Chiara Spiniello +19 more
TL;DR: In this article, a new measurement of the Hubble Constant H-0 and other cosmological parameters based on the joint analysis of three multiply imaged quasar systems with measured gravitational time delays is presented.
Journal ArticleDOI
H0LiCOW – I. H0 Lenses in COSMOGRAIL's wellspring: program overview
Sherry H. Suyu,Sherry H. Suyu,Sherry H. Suyu,Vivien Bonvin,Frederic Courbin,Christopher D. Fassnacht,Cristian E. Rusu,Dominique Sluse,Tommaso Treu,Kenneth C. Wong,Matthew W. Auger,Xuheng Ding,Xuheng Ding,Stefan Hilbert,Philip J. Marshall,N. Rumbaugh,Alessandro Sonnenfeld,Alessandro Sonnenfeld,Alessandro Sonnenfeld,M. Tewes,O. Tihhonova,Adriano Agnello,Roger Blandford,Geoff C. F. Chen,Geoff C. F. Chen,Thomas E. Collett,Léon V. E. Koopmans,Kai Liao,Georges Meylan,Chiara Spiniello +29 more
TL;DR: The H0LiCOW (H-0 Lenses in COSMOGRAIL's Wellspring) project as mentioned in this paper is a program that aims to measure H-0 with <3.5 per cent uncertainty from five lens systems (B1608+ 656, RXJ1131-1231, HE 0435-1223, WFI2033-4723 and HE 1104-1805).
Journal ArticleDOI
H0LiCOW – IX. Cosmographic analysis of the doubly imaged quasar SDSS 1206+4332 and a new measurement of the Hubble constant
Simon Birrer,Tommaso Treu,Cristian E. Rusu,Cristian E. Rusu,Vivien Bonvin,Christopher D. Fassnacht,James H. H. Chan,Adriano Agnello,Anowar J. Shajib,Geoff C. F. Chen,Matthew W. Auger,Frederic Courbin,Stefan Hilbert,Dominique Sluse,Sherry H. Suyu,Kenneth C. Wong,Philip J. Marshall,Brian C. Lemaux,G. Meylan +18 more
TL;DR: In this article, a blind time-delay strong lensing (TDSL) cosmographic analysis of the doubly imaged quasar SDSS 1206+4332 was presented.
Journal ArticleDOI
TDCOSMO IV: Hierarchical time-delay cosmography -- joint inference of the Hubble constant and galaxy density profiles
Simon Birrer,Anowar J. Shajib,A. Galan,M. Millon,Tommaso Treu,Adriano Agnello,Matthew W. Auger,Geoff C. F. Chen,Lise Christensen,Thomas E. Collett,Frederic Courbin,Christopher D. Fassnacht,Christopher D. Fassnacht,Léon V. E. Koopmans,Philip J. Marshall,Ji Won Park,Cristian E. Rusu,Dominique Sluse,Chiara Spiniello,Chiara Spiniello,Sherry H. Suyu,Sherry H. Suyu,Sherry H. Suyu,Sebastian Wagner-Carena,Kenneth C. Wong,Matteo Barnabè,Adam S. Bolton,Oliver Czoske,Xuheng Ding,Joshua A. Frieman,Joshua A. Frieman,L. Van de Vyvere +31 more
TL;DR: In this article, a hierarchical Bayesian approach was proposed to estimate the mass-sheet transform (MST) with respect to stellar kinematics, which is based on a family of mass models.
References
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Dissecting the Gravitational lens B1608+656. II. Precision Measurements of the Hubble Constant, Spatial Curvature, and the Dark Energy Equation of State
Sherry H. Suyu,Philip J. Marshall,Philip J. Marshall,Matthew W. Auger,Matthew W. Auger,Stefan Hilbert,Roger Blandford,Léon V. E. Koopmans,Christopher D. Fassnacht,Tommaso Treu,Tommaso Treu +10 more
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TL;DR: In this article, a scalar description of gravitational lensing based on Fermat's principle is described, where the lensing mass is assumed to be confined to a single plane between the source and the observer and a time delay is associated with each position in the sky of a potential image.
Journal ArticleDOI
Two accurate time-delay distances from strong lensing: implications for cosmology
Sherry H. Suyu,Sherry H. Suyu,Sherry H. Suyu,Matthew W. Auger,Stefan Hilbert,Philip J. Marshall,Malte Tewes,Tommaso Treu,Christopher D. Fassnacht,Léon V. E. Koopmans,Dominique Sluse,Roger Blandford,Frederic Courbin,Georges Meylan +13 more
TL;DR: In this paper, a blind analysis of the gravitational lens RXJ1131-1231 incorporating the newly measured time delays from COSMOGRAIL, the COSmological MOnitoring of GRAvItational Lenses, and archival Hubble Space Telescope imaging of the lens system was presented.
Journal ArticleDOI
On model-dependent bounds on H 0 from gravitational images : application to Q 0957+561 A, B.
TL;DR: On considere les images d'une source de l'arriere plan formees par une distribution de masse de premier plan dans une cosmologie de Friedmann dominee par la matiere, On presente une transformation qui laisse invariant les proprietes observables de ces images gravitationnelles En utilisant une distribution of masse composee pour representer une lentille galaxie-amas, on peut rendre compte des positions and des grossissements relatifs des images A et B de Q
Journal ArticleDOI
Ray-tracing through the Millennium Simulation: Born corrections and lens-lens coupling in cosmic shear and galaxy-galaxy lensing
TL;DR: In this article, the authors use ray-tracing through the Millennium Simulation to calculate various cosmic-shear and galaxy-galaxy-lensing statistics, and compare the results from ray tracing to semi-analytic predictions.
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