Journal article
RELICS: Strong-lensing Analysis of the Massive Clusters MACS J0308.9 2645 and PLCK G171.9-40.7
A Acebron, N Cibirka, A Zitrin, D Coe, I Agulli, K Sharon, M Bradač, B Frye, RC Livermore, G Mahler, B Salmon, K Umetsu, L Bradley, F Andrade-Santos, R Avila, D Carrasco, C Cerny, NG Czakon, WA Dawson, AT Hoag Show all
Astrophysical Journal | IOP PUBLISHING LTD | Published : 2018
Abstract
Strong gravitational lensing by galaxy clusters has become a powerful tool for probing the high-redshift universe, magnifying distant and faint background galaxies. Reliable strong-lensing (SL) models are crucial for determining the intrinsic properties of distant, magnified sources and for constructing their luminosity function. We present here the first SL analysis of MACS J0308.9+2645 and PLCK G171.9-40.7, two massive galaxy clusters imaged with the Hubble Space Telescope, in the framework of the Reionization Lensing Cluster Survey (RELICS). We use the light-traces-mass modeling technique to uncover sets of multiply imaged galaxies and constrain the mass distribution of the clusters. Our ..
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Awarded by U.S. Department of Energy
Funding Acknowledgements
We thank the anonymous referee for useful comments that helped to improve this work. This work is based on observations taken by the RELICS Treasury Program (GO-14096) with the NASA/ESA HST. Program GO-14096 is supported 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 NAS5-26555. This work was performed in part under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. R.C.L. acknowledges support from an Australian Research Council Discovery Early Career Researcher Award (DE180101240).