H0LiCOW - IV. Lens mass model of HE 0435-1223 and blind measurement of its time-delay distance for cosmology

By Kenneth C. Wong, Sherry H. Suyu, M. Auger, Vivien Bonvin, F. Courbin, C. Fassnacht, A. Halkola, C. Rusu, Dominique Sluse, A. Sonnenfeld and 6 more. 2016

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Strong gravitational lenses with measured time delays between the multiple images allow a direct measurement of the time-delay distance to the lens, and thus a measure of cosmological parameters, particularly the Hubble constant, H-0. We present a blind lens model analysis of the quadruply imaged quasar lens HE 0435-1223 using deep Hubble Space Telescope imaging, updated time-delay measurements from the COSmological MOnitoring of GRAvItational Lenses (COSMOGRAIL), a measurement of the velocity dispersion of the lens galaxy based on Keck data, and a characterization of the mass distribution along the line of sight. HE 0435-1223 is the third lens analysed as a part of the H-0 Lenses in COSMOGRAIL's Wellspring (HOLiCOW) project. We account for various sources of systematic uncertainty, including the detailed treatment of nearby perturbers, the parametrization of the galaxy light and mass profile, and the regions used for lens modelling. We constrain the effective time delay distance to be D-Delta t = 2612(191)(+208) Mpc, a precision of 7.6 per cent. From HE 0435-1223 alone, we infer a Hubble constant of H-0 = 73.1(6.0)(+5.7) km s(-1) Mpc(-1) assuming a flat ACDM cosmology. The cosmographic inference based on the three lenses analysed by HOLiCOW to date is presented in a companion paper (HOLiCOW Paper V).

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/80febdccff916b4a581ca23332c72bf19f4ca5d8

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Citations in the corpus

H0LiCOW – XIII. A 2.4 per cent measurement of H0 from lensed quasars: 5.3σ tension between early- and late-Universe probes (2019, background): “…al. 2006; Oguri 2007; Vuissoz et al. 2008; Fadely et al. 2010; Suyu et al. 2010, 2013; Sereno & Paraficz 2014; Rathna Kumar, Stalin & Prabhu 2015; Birrer, Amara & Refregier 2016; Chen et al. 2016; Bonvin et al. 2017; Wong et al. 2017; Birrer et al. 2019) due to their brightness and variable nature.”
TDCOSMO IV: Hierarchical time-delay cosmography -- joint inference of the Hubble constant and galaxy density profiles (2020, methodology): “…Koopmans et al. 2003; Saha et al. 2006; Read et al. 2007; Oguri 2007; Coles 2008; Vuissoz et al. 2008; Suyu et al. 2010, 2013, 2014; Fadely et al. 2010; Sereno & Paraficz 2014; Rathna et al. 2015; Birrer et al. 2016, 2019; Wong et al. 2017; Rusu et al. 2020; Chen et al. 2019; Shajib et al. 2020a).”
H0LiCOW – I. H0 Lenses in COSMOGRAIL's wellspring: program overview (2016, methodology): “H0LiCOW Paper IV (Wong et al. 2017) models the lens mass distribution using the HST data, the time delays and the lens velocity dispersion to infer the time-delay distance, that is blinded throughout the analysis.”
TDCOSMO. I. An exploration of systematic uncertainties in the inference of $H_0$ from time-delay cosmography (2019, result): “This is consistent with the findings of the H0LiCOW, SHARP, and STRIDES collaborations so far (Suyu et al. 2014; Wong et al. 2017; Birrer et al. 2019; Chen et al. 2019; Rusu et al. 2020; Shajib et al. 2020).”