3 papers
astro-ph.GA2026
Mature but Still Growing: JWST Detection of the Earliest Intracluster Light at z ~ 2
Hyungjin Joo, M. James Jee, Kyle Finner +6
We present a JWST analysis of intracluster light (ICL) in XLSSC 122 at z = 1.98, currently the most distant known strong lensing galaxy cluster with an evolved member population. U…
astro-ph.GA2026
An Active Galaxy Cluster Merger at Cosmic Noon Revealed by JWST Weak Lensing and Multiwavelength Probes
Zachary P. Scofield, Kyle Finner, Hyungjin Joo +8
The galaxy cluster XLSSC~122 is a rare system at , hosting surprisingly evolved member galaxies when the Universe was only one-third of its present age. Leveraging deep J…
astro-ph.CO2025
Exploring the Masses of the Two Most Distant Gravitational Lensing Clusters at the Cosmic Noon
Jinhyub Kim, M. James Jee, Stefano Andreon +4
Observations over the past decade have shown that galaxy clusters undergo the most transformative changes during the epoch. However, challenges such as low lensing ef…