The KALEIDOSCOPE survey : A new strong and weak gravitational lensing view of the massive galaxy cluster MACS J1423.8+2404
arxiv(2024)
摘要
We present a combined strong and weak gravitational-lensing analysis of the
massive galaxy cluster MACS J1423.8+2404 (z=0.545, MACS J1423 hereafter), one
of the most dynamically relaxed and massive cool-core clusters discovered in
the MAssive Cluster Survey at z>0.5. We combine high-resolution imaging from
the Hubble Space Telescope (HST) in the F606W, F814W, and F160W pass-bands with
spectroscopic observations taken as part of the KALEIDOSCOPE survey with the
Multi-Unit Spectroscopic Explorer mounted on the Very Large Telescope. Our
strong lensing analysis of the mass distribution in the cluster core is
constrained by four multiple-image systems (17 individual images) within
redshift range 1.779更多
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