output
19932026
most citedFirst M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

4.3k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2011 · astro-ph.GAShow all

5 papers · 2 filters

astro-ph.GA2011★ 126 cited

Bar effects on central star formation and AGN activity

Seulhee Oh, Kyuseok Oh, Sukyoung K. Yi

Galactic bars are often suspected to be a channel of gas inflow to the galactic center and trigger central star formation and active galactic nuclei (AGN) activity. However, the cu…

astro-ph.GA2011★ 48 cited

The effect of helium-enhanced stellar populations on the ultraviolet-upturn phenomenon of early-type galaxies

Chul Chung, Suk-Jin Yoon, Young-Wook Lee

Recent observations and modeling of globular clusters with multiple populations strongly indicate the presence of super helium-rich subpopulations in old stellar systems. Motivated…

astro-ph.GA2011★ 66 cited

The UV Upturn in Elliptical galaxies and Environmental Effects

Sukyoung K. Yi, Jihye Lee, Yun-Kyeong Sheen +3

It is suspected that the ultraviolet (UV) upturn phenomenon in elliptical galaxies and extended horizontal-branch stars in globular clusters have a common origin. An extremely high…

astro-ph.GA2011★ 30 cited

Two Distinct Red Giant Branches in the Globular Cluster NGC 288

Dong-Goo Roh, Young-Wook Lee, Seok-Joo Joo +3

We report the presence of two distinct red giant branches (RGBs) in the globular cluster NGC 288 from the narrow-band calcium and Strömgren b & y photometry obtained at the CTIO 4m…

astro-ph.GA2011★ 24 cited

Early-type host galaxies of Type II and Ib Supernovae

Hyewon Suh, Sung-chul Yoon, Hyunjin Jeong +1

Recent studies find that some early-type galaxies host Type II or Ibc supernovae (SNe II, Ibc). This may imply recent star-formation activities in these SNe host galaxies, but a ma…