191 citations · 356 across the 6 of their papers we have counts for
6 papers
Lyman-alpha Absorbers and the Coma Cluster
Joo Heon Yoon, Mary E. Putman
The spatial and kinematic distribution of warm gas in and around the Coma Cluster is presented through observations of Lyman-alpha absorbers using background QSOs. Updates to the L…
Evidence That Hydra I is a Tidally Disrupting Milky Way Dwarf Galaxy
Jonathan R. Hargis, B. Kimmig, B. Willman +6
The Eastern Banded Structure (EBS) and Hydra~I halo overdensity are very nearby (d 10 kpc) objects discovered in SDSS data. Previous studies of the region have shown that EB…
The Influence of Environment on the Circumgalactic Medium
Joo Heon Yoon, Mary Putman
The effect of environment on the circumgalactic medium (CGM) is investigated through a comparison of Lya absorption line data in the Virgo Cluster and the field. This Letter uses t…
Warm Gas in the Virgo Cluster: I. Distribution of Lya Absorbers
Joo Heon Yoon, Mary Putman, Christopher Thom +2
The first systematic study of the warm gas (T=10^4-5 K) distribution across a galaxy cluster is presented using multiple background QSOs to the Virgo Cluster. We detect 25 Lya abso…
Clumpy Streams from Clumpy Halos: Detecting Missing Satellites with Cold Stellar Structures
Joo Heon Yoon, Kathryn V. Johnston, David W. Hogg
Dynamically cold stellar streams are ideal probes of the gravitational field of the Milky Way. This paper re-examines the question of how such streams might be used to test for the…
A Spectro-photometric Search for Galaxy Clusters in SDSS
Joo H. Yoon, Kevin Schawinski, Yun-Kyeong Sheen +2
Recent large-scale galaxy spectroscopic surveys, such as the Sloan Digital Sky Survey (SDSS), enable us to execute a systematic, relatively-unbiased search for galaxy clusters. Suc…