Published in
American Astronomical Society, Astrophysical Journal, 1(777), p. 43, 2013
DOI: 10.1088/0004-637x/777/1/43
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Tools
CLASH: Complete Lensing Analysis of the Largest Cosmic Lens MACS J0717.5+3745 and Surrounding Structures
,
Mario Nonino ,
Julian Merten,
Adi Zitrin,
Tom Broadhurst,
Megan Donahue,
Jack Sayers,
Jean-Claude Waizmann,
Anton Koekemoer ,
Dan Coe,
Alberto Molino,
Peter Melchior,
Tony Mroczkowski ,
Nicole Czakon
and other authors.
Full text: Download
Abstract
The galaxy cluster MACS J0717.5+3745 (z=0.55) is the largest known cosmic lens, with complex internal structures seen in deep X-ray, Sunyaev-Zel'dovich effect and dynamical observations. We perform a combined weak and strong lensing analysis with wide-field BVRi'z' Subaru/Suprime-Cam observations and 16-band Hubble Space Telescope observations taken as part of the Cluster Lensing And Supernova survey with Hubble (CLASH). We find consistent weak distortion and magnification measurements of background galaxies, and combine these signals to construct an optimally estimated radial mass profile of the cluster and its surrounding large-scale structure out to 5 Mpc/h. We find consistency between strong-lensing and weak-lensing in the region where these independent data overlap, 0.5, in terms of extreme value statistics we conclude that the mass of MACS J0717.5+3745 by itself is not in serious tension with LambdaCDM, representing only a ~2{σ} departure above the maximum simulated halo mass at this redshift. ; Comment: 24 pages, 16 pages, 6 tables; matches version accepted for publication in ApJ