TY - JOUR
T1 - RELICS
T2 - Strong Lens Models for Five Galaxy Clusters from the Reionization Lensing Cluster Survey
AU - Cerny, Catherine
AU - Sharon, Keren
AU - Andrade-Santos, Felipe
AU - Avila, Roberto J.
AU - Bradač, Maruša
AU - Bradley, Larry D.
AU - Carrasco, Daniela
AU - Coe, Dan
AU - Czakon, Nicole G.
AU - Dawson, William A.
AU - Frye, Brenda L.
AU - Hoag, Austin
AU - Huang, Kuang Han
AU - Johnson, Traci L.
AU - Jones, Christine
AU - Lam, Daniel
AU - Lovisari, Lorenzo
AU - Mainali, Ramesh
AU - Oesch, Pascal A.
AU - Ogaz, Sara
AU - Past, Matthew
AU - Paterno-Mahler, Rachel
AU - Peterson, Avery
AU - Riess, Adam G.
AU - Rodney, Steven A.
AU - Ryan, Russell E.
AU - Salmon, Brett
AU - Sendra-Server, Irene
AU - Stark, Daniel P.
AU - Strolger, Louis Gregory
AU - Trenti, Michele
AU - Umetsu, Keiichi
AU - Vulcani, Benedetta
AU - Zitrin, Adi
N1 - Publisher Copyright:
© 2018. The American Astronomical Society. All rights reserved.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - Strong gravitational lensing by galaxy clusters magnifies background galaxies, enhancing our ability to discover statistically significant samples of galaxies at z > 6, in order to constrain the high-redshift galaxy luminosity functions. Here, we present the first five lens models out of the Reionization Lensing Cluster Survey (RELICS) Hubble Treasury Program, based on new HST WFC3/IR and ACS imaging of the clusters RXC J0142.9+4438, Abell 2537, Abell 2163, RXC J2211.7-0349, and ACT-CLJ0102-49151. The derived lensing magnification is essential for estimating the intrinsic properties of high-redshift galaxy candidates, and properly accounting for the survey volume.We report on new spectroscopic redshifts of multiply imaged lensed galaxies behind these clusters, which are used as constraints, and detail our strategy to reduce systematic uncertainties due to lack of spectroscopic information. In addition, we quantify the uncertainty on the lensing magnification due to statistical and systematic errors related to the lens modeling process, and find that in all but one cluster, the magnification is constrained to better than 20% in at least 80% of the field of view, including statistical and systematic uncertainties. The five clusters presented in this paper span the range of masses and redshifts of the clusters in the RELICS program. We find that they exhibit similar strong lensing efficiencies to the clusters targeted by the Hubble Frontier Fields within the WFC3/IR field of view. Outputs of the lens models are made available to the community through the Mikulski Archive for Space Telescopes.
AB - Strong gravitational lensing by galaxy clusters magnifies background galaxies, enhancing our ability to discover statistically significant samples of galaxies at z > 6, in order to constrain the high-redshift galaxy luminosity functions. Here, we present the first five lens models out of the Reionization Lensing Cluster Survey (RELICS) Hubble Treasury Program, based on new HST WFC3/IR and ACS imaging of the clusters RXC J0142.9+4438, Abell 2537, Abell 2163, RXC J2211.7-0349, and ACT-CLJ0102-49151. The derived lensing magnification is essential for estimating the intrinsic properties of high-redshift galaxy candidates, and properly accounting for the survey volume.We report on new spectroscopic redshifts of multiply imaged lensed galaxies behind these clusters, which are used as constraints, and detail our strategy to reduce systematic uncertainties due to lack of spectroscopic information. In addition, we quantify the uncertainty on the lensing magnification due to statistical and systematic errors related to the lens modeling process, and find that in all but one cluster, the magnification is constrained to better than 20% in at least 80% of the field of view, including statistical and systematic uncertainties. The five clusters presented in this paper span the range of masses and redshifts of the clusters in the RELICS program. We find that they exhibit similar strong lensing efficiencies to the clusters targeted by the Hubble Frontier Fields within the WFC3/IR field of view. Outputs of the lens models are made available to the community through the Mikulski Archive for Space Telescopes.
KW - galaxies: clusters: individual (RXC J0142.9+4438, Abell 2537, Abell 2163, RXC J2211.7-0349, ACT-CLJ0102-49151
KW - gravitational lensing: strong
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U2 - 10.3847/1538-4357/aabe7b
DO - 10.3847/1538-4357/aabe7b
M3 - Article
AN - SCOPUS:85048303189
SN - 0004-637X
VL - 859
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 159
ER -