93 citations · 660 across the 25 of their papers we have counts for
6 papers · 1 filter
The Seoul National University AGN monitoring project. II. BLR size and black hole mass of two AGNs
Suvendu Rakshit, Jong-Hak Woo, Elena Gallo +20
Active galactic nuclei (AGNs) show a correlation between the size of the broad line region (BLR) and the monochromatic continuum luminosity at 5100 Å, allowing black hole mass esti…
NuSTAR Discovery of Dead Quasar Engine in Arp 187
Kohei Ichikawa, Taiki Kawamuro, Megumi Shidatsu +7
Recent active galactic nucleus (AGN) and quasar surveys have revealed a population showing rapid AGN luminosity variability by a factor of . Here we present the most drasti…
Positive and negative feedback of AGN outflows in NGC 5728
Jaejin Shin, Jong-Hak Woo, Aeree Chung +4
We present a spatially-resolved analysis of ionized and molecular gas in a nearby Seyfert 2 galaxy NGC 5728, using the VLT/MUSE and ALMA data. We find ionized gas outflows out to ~…
A 10,000-solar-mass black hole in the nucleus of a bulgeless dwarf galaxy
Jong-Hak Woo, Hojin Cho, Elena Gallo +5
The motions of gas and stars in the nuclei of nearby large galaxies have demonstrated that massive black holes are common and that their masses strongly correlate with the stellar…
Unraveling the complex structure of AGN-driven outflows: IV. Comparing AGNs with and without strong outflows
Rongxin Luo, Jong-Hak Woo, Jaejin Shin +3
AGN-driven outflows are considered as one of the processes driving the co-evolution of supermassive black holes with their host galaxies. We present integral field spectroscopy of…
The FeII/MgII flux ratio of low-luminosity quasars at z~3
Jaejin Shin, Tohru Nagao, Jong-Hak Woo +1
The FeII/MgII line flux ratio has been used to investigate the chemical evolution of high redshift active galactic nuclei (AGNs). No strong evolution has been found out to z~6, imp…