H0LiCOW-X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033-4723

D. Sluse; C. E. Rusu; C. D. Fassnacht; A. Sonnenfeld; J. Richard; M. W. Auger; L. Coccato; K. C. Wong; S. H. Suyu; T. Treu; A. Agnello; S. Birrer; Bonvin; T. Collett; F. Courbin; S. Hilbert; L. V. E. Koopmans; O. Tihhanova; P. J. Marshall; G. Meylan; A. J. Shajib; J. Annis; S. Avila; E. Bertin; D. Brooks; E. Buckley-Geer; D. L. Burke; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; F. J. Castander; L. N. da Costa; J. De Vicente; S. Desai; P. Doel; A. E. Evrard; B. Flaugher; J. Frieman; J. Garcia-Bellido; D. W. Gerdes; D. A. Goldstein; R. A. Gruendl; J. Gschwend; W. G. Hartley; D. L. Hollowood; K. Honscheid; D. J. James; A. G. Kim; E. Krause; K. Kuehn; N. Kuropatkin; M. Lima; H. Lin; M. A. G. Maia; J. L. Marshall; P. Melchior; F. Menanteau; R. Miquel; A. A. Plazas; E. Sanchez; S. Serrano; Sevilla-Noarbe; M. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E. C. Swanson; G. Tarle; SLAC National Accelerator Lab., Menlo Park, CA (United States)

doi:10.1093/mnras/stz2483

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H0LiCOW-X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033-4723

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H0LiCOW-X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033-4723

D. Sluse, C. E. Rusu, C. D. Fassnacht, A. Sonnenfeld, J. Richard, M. W. Auger, L. Coccato, K. C. Wong, S. H. Suyu, T. Treu, …

Monthly notices of the Royal Astronomical Society, Vol.490(1), pp.613-633

11/21/2019

DOI: https://doi.org/10.1093/mnras/stz2483

Abstract

Astronomy & Astrophysics

Science & Technology

Physical Sciences

Galaxies and galaxy groups located along the line of sight towards gravitationally lensed quasars produce high-order perturbations of the gravitational potential at the lens position. When these perturbation are too large, they can induce a systematic error on H-0 of a few per cent if the lens system is used for cosmological inference and the perturbers are not explicitly accounted for in the lens model. In this work, we present a detailed characterization of the environment of the lens system WFI 2033-4723 (z(src) = 1.662, z(lens) = 0.6575), one of the core targets of the H0LiCOW project for which we present cosmological inferences in a companion paper. We use the Gemini and ESO-Very Large telescopes to measure the spectroscopic redshifts of the brightest galaxies towards the lens, and use the ESO-MUSE integral field spectrograph to measure the velocity-dispersion of the lens (sigma(los) = 250(-21)(+15) km s(-1)) and of several nearby galaxies. In addition, we measure photometric redshifts and stellar masses of all galaxies down to i < 23 mag, mainly based on Dark Energy Survey imaging (DR1). Our new catalogue, complemented with literature data, more than doubles the number of known galaxy spectroscopic redshifts in the direct vicinity of the lens, expanding to 116 (64) the number of spectroscopic redshifts for galaxies separated by less than 3 arcmin (2 arcmin) from the lens. Using the flexion-shift as a measure of the amplitude of the gravitational perturbation, we identify two galaxy groups and three galaxies that require specific attention in the lens models. The ESO MUSE data enable us to measure the velocity-dispersions of three of these galaxies. These results are essential for the cosmological inference analysis presented in Rusu et al.

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Title: H0LiCOW-X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033-4723
Creators: D. Sluse - Agora
C. E. Rusu - National Astronomical Observatory of Japan
C. D. Fassnacht - University of California, Davis
A. Sonnenfeld - Kavli Institute for the Physics and Mathematics of the Universe
J. Richard - Centre de Recherche Astrophysique de Lyon
M. W. Auger - University of Cambridge
L. Coccato - European Southern Observatory
K. C. Wong - Kavli Institute for the Physics and Mathematics of the Universe
S. H. Suyu - Max Planck Institute for Astrophysics
T. Treu - University of California, Los Angeles
A. Agnello - European Southern Observatory
S. Birrer - Kavli Institute for Particle Astrophysics and Cosmology
Bonvin - EPFL, Lab Astrophys, Observ Sauverny, CH-1290 Versoix, Switzerland
T. Collett - University of Portsmouth
F. Courbin - Federal Reserve
S. Hilbert - Excellence Cluster Universe
L. V. E. Koopmans - University of Groningen
O. Tihhanova - École Polytechnique Fédérale de Lausanne
P. J. Marshall - Kavli Institute for Particle Astrophysics and Cosmology
G. Meylan - École Polytechnique Fédérale de Lausanne
A. J. Shajib - University of California, Los Angeles
J. Annis - Fermi National Accelerator Laboratory
S. Avila - University of Portsmouth
E. Bertin - Centre National de la Recherche Scientifique
D. Brooks - University College London
E. Buckley-Geer - Fermi National Accelerator Laboratory
D. L. Burke - SLAC National Accelerator Laboratory
A. Carnero Rosell - Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid 28040, Spain
M. Carrasco Kind - University of Illinois Urbana-Champaign
J. Carretero - Institute for High Energy Physics
F. J. Castander - Institut d'Estudis Espacials de Catalunya
L. N. da Costa - Laboratório Interinstitucional de e-Astronomia
J. De Vicente - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
S. Desai - Indian Institute of Technology Hyderabad
P. Doel - University College London
A. E. Evrard - University of Michigan
B. Flaugher - ETH Zurich
J. Frieman - Fermi National Accelerator Laboratory
J. Garcia-Bellido - Universidad Autónoma de Madrid
D. W. Gerdes - University of Michigan
D. A. Goldstein - California Institute of Technology
R. A. Gruendl - National Center for Supercomputing Applications
J. Gschwend - Laboratório Interinstitucional de e-Astronomia
W. G. Hartley - ETH Zurich
D. L. Hollowood - Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
K. Honscheid - The Ohio State University
D. J. James - Center for Astrophysics Harvard & Smithsonian
A. G. Kim - Lawrence Berkeley National Laboratory
E. Krause - Univ Arizona, Dept Astron, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA
K. Kuehn - Australian Astronomical Observatory
N. Kuropatkin - Fermi National Accelerator Laboratory
M. Lima - Laboratório Interinstitucional de e-Astronomia
H. Lin - Fermi National Accelerator Laboratory
M. A. G. Maia - Laboratório Interinstitucional de e-Astronomia
J. L. Marshall - Mitchell Institute
P. Melchior - Princeton University
F. Menanteau - National Center for Supercomputing Applications
R. Miquel - Institució Catalana de Recerca i Estudis Avançats
A. A. Plazas - Jet Propulsion Laboratory
E. Sanchez - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
S. Serrano - Institute of Space Sciences
Sevilla-Noarbe - Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid 28040, Spain
M. Smith - University of Southampton
M. Soares-Santos - Brandeis University, Martin A. Fisher School of Physics
F. Sobreira - Universidade Estadual de Campinas (UNICAMP)
E. Suchyta - Oak Ridge National Laboratory
M. E. C. Swanson - National Center for Supercomputing Applications
G. Tarle - Institute for High Energy Physics
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Details: Monthly notices of the Royal Astronomical Society, Vol.490(1), pp.613-633
Publisher: Oxford Univ Press
Number of pages: 21
Grant note: European Research Council under the European Union's Seventh Framework Program (FP7/2007-2013); European Research Council (ERC) University of Edinburgh University of Chicago NAS 5-26555 / NASA; National Aeronautics & Space Administration (NASA) U.S. Department of Energy; United States Department of Energy (DOE) World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Kavli Institute of Cosmological Physics at the University of Chicago Lawrence Berkeley National Laboratory; United States Department of Energy (DOE) Ministerio da Ciencia, Tecnologia e Inovacao; Spanish Government Ministry of Science and Education of Spain; Spanish Government
Identifiers: 9924552843601921
Academic Unit: Martin A. Fisher School of Physics
Language: English
Resource Type: Journal article

H0LiCOW-X. Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI 2033-4723

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