TY - JOUR
T1 - RELICS
T2 - High-resolution Constraints on the Inner Mass Distribution of the z = 0.83 Merging Cluster RXJ0152.7-1357 from Strong Lensing
AU - Acebron, Ana
AU - Alon, May
AU - Zitrin, Adi
AU - Mahler, Guillaume
AU - Coe, Dan
AU - Sharon, Keren
AU - Cibirka, Nathália
AU - Bradač, Maruša
AU - Trenti, Michele
AU - Umetsu, Keiichi
AU - Andrade-Santos, Felipe
AU - Avila, Roberto J.
AU - Bradley, Larry
AU - Carrasco, Daniela
AU - Cerny, Catherine
AU - Czakon, Nicole G.
AU - Dawson, William A.
AU - Frye, Brenda
AU - Hoag, Austin T.
AU - Huang, Kuang Han
AU - Johnson, Traci L.
AU - Jones, Christine
AU - Kikuchihara, Shotaro
AU - Lam, Daniel
AU - Livermore, Rachael C.
AU - Lovisari, Lorenzo
AU - Mainali, Ramesh
AU - Oesch, Pascal A.
AU - Ogaz, Sara
AU - Ouchi, Masami
AU - Past, Matthew
AU - Paterno-Mahler, Rachel
AU - Peterson, Avery
AU - Ryan, Russell E.
AU - Salmon, Brett
AU - Sendra-Server, Irene
AU - Stark, Daniel P.
AU - Strait, Victoria
AU - Toft, Sune
AU - Vulcani, Benedetta
N1 - Publisher Copyright:
© 2019. The American Astronomical Society. All rights reserved.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - Strong gravitational lensing (SL) is a powerful means of mapping the distribution of dark matter. In this work, we perform an SL analysis of the prominent X-ray cluster RXJ0152.7-1357 (z = 0.83, also known as CL0152.7-1357) in Hubble Space Telescope images, taken in the framework of the Reionization Lensing Cluster Survey (RELICS). On top of a previously known z = 3.93 galaxy multiply imaged by RXJ0152.7-1357, for which we identify an additional multiple image, guided by a light-traces-mass approach, we identify seven new sets of multiply imaged background sources lensed by this cluster, spanning the redshift range [1.79-3.93]. A total of 25 multiple images are seen over a small area of ∼0.4 arcmin 2 , allowing us to put relatively high-resolution constraints on the inner matter distribution. Although modestly massive, the high degree of substructure, together with its very elongated shape, makes RXJ0152.7-1357 a very efficient lens for its size. This cluster also comprises the third-largest sample of z ∼ 6-7 candidates in the RELICS survey. Finally, we present a comparison of our resulting mass distribution and magnification estimates with those from a Lenstool model. These models are made publicly available through the Mikulski Archive for Space Telescopes.
AB - Strong gravitational lensing (SL) is a powerful means of mapping the distribution of dark matter. In this work, we perform an SL analysis of the prominent X-ray cluster RXJ0152.7-1357 (z = 0.83, also known as CL0152.7-1357) in Hubble Space Telescope images, taken in the framework of the Reionization Lensing Cluster Survey (RELICS). On top of a previously known z = 3.93 galaxy multiply imaged by RXJ0152.7-1357, for which we identify an additional multiple image, guided by a light-traces-mass approach, we identify seven new sets of multiply imaged background sources lensed by this cluster, spanning the redshift range [1.79-3.93]. A total of 25 multiple images are seen over a small area of ∼0.4 arcmin 2 , allowing us to put relatively high-resolution constraints on the inner matter distribution. Although modestly massive, the high degree of substructure, together with its very elongated shape, makes RXJ0152.7-1357 a very efficient lens for its size. This cluster also comprises the third-largest sample of z ∼ 6-7 candidates in the RELICS survey. Finally, we present a comparison of our resulting mass distribution and magnification estimates with those from a Lenstool model. These models are made publicly available through the Mikulski Archive for Space Telescopes.
KW - galaxies: clusters: individual (RXJ0152.7-1357, CL0152.7-1357)
KW - galaxies: high-redshift
KW - gravitational lensing: strong
UR - https://www.scopus.com/pages/publications/85064434316
U2 - 10.3847/1538-4357/ab0adf
DO - 10.3847/1538-4357/ab0adf
M3 - Article
AN - SCOPUS:85064434316
SN - 0004-637X
VL - 874
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 132
ER -