5 papers
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…
Searching for Dark Structures: A Comparison of Weak-lensing Convergence Maps and Lensing-weighted Galaxy Density Maps
Soojin Kim, Ho Seong Hwang, Niall Jeffrey
We present the result of a comparison between the dark matter distribution inferred from weak gravitational lensing and the observed galaxy distribution to identify dark structures…
ODIN: A New Lyman Alpha Blob Selection Method, Sample, and Statistical Analysis at
Byeongha Moon, Yujin Yang, Kyoung-Soo Lee +26
Ly blobs (LABs) are large, spatially extended Ly-emitting objects whose nature remains unclear. Their statistical properties such as number densities and luminosity functio…
Revealing Hidden Cosmic Flows through the Zone of Avoidance with Deep Learning
Alexandra Dupuy, Donghui Jeong, Sungwook E. Hong +3
We present a refined deep-learning-based method to reconstruct the three-dimensional dark matter density, gravitational potential, and peculiar velocity fields in the Zone of Avoid…
Searching for Dark Galaxies with HI detection from the Arecibo Legacy Fast ALFA (ALFALFA) survey
Minseong Kwon, Ho Seong Hwang, Brian R. Kent +3
We present a catalog of 142 dark galaxy candidates in a region covered by the Arecibo Legacy Fast ALFA (ALFALFA) survey. We start with 344 ALFALFA HI sources without optical counte…