IDCS J1426.5+3508: Weak Lensing Analysis of a Massive Galaxy Cluster at z=1.75
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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Additional details
- Eprint ID
- 65301
- Resolver ID
- CaltechAUTHORS:20160311-110404000
- HST-GO-11663
- NASA
- HST-GO-12203
- NASA
- HST-GO-12994
- NASA
- NAS 5-26555
- NASA
- DGE-1315138
- NSF Graduate Research Fellowship
- National Research Foundation of Korea
- Royal Society
- NASA/JPL/Caltech
- Created
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2016-03-11Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field