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    Joint Strong and Weak Lensing Analysis of the Massive Cluster Field J0850+3604

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    Wong_2017_ApJ_844_127.pdf
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    Author
    Wong, Kenneth C. cc
    Raney, Catie
    Keeton, Charles R. cc
    Umetsu, K. cc
    Zabludoff, Ann cc
    Ammons, S. Mark cc
    French, K. Decker cc
    Affiliation
    Univ Arizona, Steward Observ
    Issue Date
    2017-07-31
    Keywords
    galaxies: clusters: individual (Zwicky 1953)
    gravitational lensing: strong
    gravitational lensing: weak
    
    Metadata
    Show full item record
    Publisher
    IOP PUBLISHING LTD
    Citation
    Joint Strong and Weak Lensing Analysis of the Massive Cluster Field J0850+3604 2017, 844 (2):127 The Astrophysical Journal
    Journal
    The Astrophysical Journal
    Rights
    © 2017. The American Astronomical Society. All rights reserved.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    We present a combined strong and weak lensing analysis of the J085007.6+360428 (J0850) field, which contains the massive cluster Zwicky 1953. This field was selected for its high projected concentration of luminous red galaxies. Using Subaru/Suprime-Cam BVR(c)I(c)i'z' imaging and MMT/Hectospec spectroscopy, we first perform a weak lensing shear analysis to constrain the mass distribution in this field, including the cluster at z = 0.3774 and a smaller foreground halo at z = 0.2713. We then add a strong lensing constraint from a multiply imaged galaxy in the imaging data with a photometric redshift of z approximate to 5.03. Unlike previous cluster-scale lens analyses, our technique accounts for the full three-dimensional mass structure in the beam, including galaxies along the line of sight. In contrast with past cluster analyses that used only lensed image positions as constraints, we use the full surface brightness distribution of the images. This method predicts that the source galaxy crosses a lensing caustic, such that one image is a highly magnified "fold arc" that could be used to probe the source galaxy's structure at ultra-high spatial resolution (< 30 pc). We calculate the mass of the primary cluster to be M-vir = 2.93(-0.65)(+0.71) x 10(15) M-circle dot. with a concentration of C-vir = 3.46(-0.59)(+0.70), consistent with the mass-concentration relation of massive clusters at a similar redshift. The large mass of this cluster makes J0850 an excellent field for leveraging lensing magnification to search for high-redshift galaxies, competitive with and complementary to that of well-studied clusters such as the HST Frontier Fields.
    ISSN
    1538-4357
    DOI
    10.3847/1538-4357/aa7c19
    Version
    Final published version
    Sponsors
    EACOA - East Asia Core Observatories Association; NSF [AST-1211385, AST-1211874]; Ministry of Science and Technology of Taiwan [MOST 103-2112-M-001-030-MY3, MOST 103-2112-M-001-003-MY3]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
    Additional Links
    http://stacks.iop.org/0004-637X/844/i=2/a=127?key=crossref.232679f3a5bad2b4ae5ff8cb381065f9
    ae974a485f413a2113503eed53cd6c53
    10.3847/1538-4357/aa7c19
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