9 papers
Dark and Luminous Matter in the Coma Cluster: Probing Galaxy Cluster Assembly Through Filaments with Weak Lensing and Multiwavelength Observations
K. HyeongHan, K. Finner, M. James Jee +11
The Coma cluster (Abell 1656; ) is a nearby rich galaxy cluster and a key laboratory for studying cluster assembly in the Cosmic Web. We characterize its projected dark ma…
Near-IR Weak-lensing (NIRWL) Measurements in the CANDELS Fields. II. Mass Mapping and Overdensity Characterization
Kyle Finner, Bomee Lee, Ranga-Ram Chary +4
The Hubble Space Telescope Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) fields offer an exceptional combination of depth, spatial resolution, and area f…
Weak-Lensing Analysis of the Galaxy Cluster Abell 85: Constraints on the Merger Scenarios of Its Southern Subcluster
Soojin Kim, Kim HyeongHan, Wonki Lee +3
Abell 85 is a nearby (z=0.055) galaxy cluster that hosts a sloshing cool core, a feature commonly reported in relaxed clusters. However, the presence of multiple past and ongoing m…
Reproducing Abell 2744 with the HyperMillennium Simulation
Qiao Wang, Ming Li, Liang Gao +11
We present the Hyper Millennium (HM) simulation, an extremely large cosmological simulation designed to support next-generation galaxy surveys. The simulation follows 4.2 trillion…
Joint JWST-DECam Lensing Reveals That the Bullet Cluster Is a Minor Merger
Boseong Young Cho, M. James Jee, Hyungjin Joo +2
We present the first robust virial masses of the Bullet Cluster's three individual components from a joint weak+strong lensing analysis combining JWST/NIRCam and DECam observations…
SDSS-C4 3028: The Nearest Blue Galaxy Cluster Devoid of an Intracluster Medium
Shweta Jain, Yuanyuan Su, Andra Stroe +9
SDSS-C4 3028 is a galaxy cluster at , notable for its unusually high fraction of star-forming galaxies with 19 star-forming and 11 quiescent spectroscopically-confirmed me…