CaltechAUTHORS
Published February 20, 2016 | Version Published + Submitted
Journal Article Open

IDCS J1426.5+3508: Weak Lensing Analysis of a Massive Galaxy Cluster at z=1.75

Creators

  • 1. ROR icon University of Florida
  • 2. ROR icon Yonsei University
  • 3. ROR icon Durham University
  • 4. ROR icon Jet Propulsion Lab
  • 5. ROR icon California Institute of Technology
  • 6. ROR icon University of Missouri
  • 7. ROR icon University of Arizona
  • 8. ROR icon University of California, Davis
  • 9. ROR icon Pennsylvania State University
  • 10. ROR icon The University of Texas at Austin

Abstract

We present a weak lensing study of the galaxy cluster IDCS J1426.5+3508 at z = 1.75, which is the highest-redshift strong lensing cluster known and the most distant cluster for which a weak lensing analysis has been undertaken. Using F160W, F814W, and F606W observations with the Hubble Space Telescope, we detect tangential shear at 2σ significance. Fitting a Navarro–Frenk–White mass profile to the shear with a theoretical median mass-concentration relation, we derive a mass M_(200,crit) = 2.3_(1.4)^(+2.1) x 10^(14)M_⊙. This mass is consistent with previous mass estimates from the Sunyaev–Zel'dovich (SZ) effect, X-ray, and strong lensing. The cluster lies on the local SZ–weak lensing mass scaling relation observed at low redshift, indicative of minimal evolution in this relation.

Additional Information

© 2016 American Astronomical Society. Received 2015 October 30; accepted 2016 January 27; published 2016 February 12. The authors thank the anonymous referee and Daniel Stern for their insightful suggestions and Audrey Galametz for her help with the CANDELS-UDS data. Support for HST GO-program 11663, 12203, and 12994 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. We also acknowledge funding received from the National Science Foundation Graduate Research Fellowship under grant No. DGE-1315138 (W.M.), NRF of Korea to CGER (M.J.J.), and Royal Society University Research Fellowship (R.M.). J.R. is supported by JPL, which is run by Caltech under a contract for NASA.

Attached Files

Published - Mo_2016pL25.pdf

Submitted - 1601.07967v1.pdf

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1601.07967v1.pdf

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Additional details

Identifiers

Eprint ID
65301
Resolver ID
CaltechAUTHORS:20160311-110404000

Related works

Describes
http://arxiv.org/abs/1601.07967 (URL)

Funding

NASA
HST-GO-11663
NASA
HST-GO-12203
NASA
HST-GO-12994
NASA
NAS 5-26555
NSF Graduate Research Fellowship
DGE-1315138
National Research Foundation of Korea
Royal Society
NASA/JPL/Caltech

Dates

Created
2016-03-11
Created from EPrint's datestamp field
Updated
2021-11-10
Created from EPrint's last_modified field