6 citations · 7 across the 10 of their papers we have counts for
10 papers
The Changing-look Phenomenon Accompanied by an Accretion Mode Transition in NGC 3786
Suyeon Son, Minjin Kim, Luis C. Ho +2
To reveal the physical origin of the changing-look (CL) phenomenon in NGC 3786, which transitioned from type 1.8/1.9 to type 1, we present an analysis of long-term spectral monitor…
The Identification of Asymmetric Barred Galaxies in Illustris TNG-50
Junwoo Jung, Minjin Kim, Taehyun Kim
Most barred galaxies exhibit symmetric structures. However, recent studies have shown that a subset of barred galaxies exhibit lopsided morphologies. To quantify their occurrence a…
BASS. LI. Cool gas supply of HI-massive local Seyfert galaxies
Jeein Kim, Aeree Chung, O. Ivy Wong +19
We present neutral atomic hydrogen (HI) imaging observations of 22 HI-rich (), hard X-ray-selected local Seyferts to explore how cool gas is su…
Mid-infrared Variability-based AGN Selection using the Multi-epoch Photometric Data from WISE
Shinyu Kim, Minjin Kim, Suyeon Son +1
We assess the systematics and efficiency of an AGN selection method based on mid-infrared (MIR) variability. To this end, we utilize various types of active and inactive galaxies f…
Asymmetric torus variability in active galactic nuclei driven by global brightening and dimming
Suyeon Son, Minjin Kim, Luis C. Ho
Temporal asymmetry in the flux variability of active galactic nuclei (AGNs) offers key insights into the physical mechanisms driving AGN variability. In this study, we investigated…
Continuum variability in multi-epoch quasar spectra from the Sloan Digital Sky Survey
Minjin Kim, Suyeon Son, Luis C. Ho
We examine the continuum variability of active galactic nuclei (AGNs) by analyzing the multi-epoch spectroscopic data from the Sloan Digital Sky Survey. To achieve this, we utilize…
Probing the Physical Origin of the Balmer Decrement in the Broad-line Region of Nearby Active Galactic Nuclei via Spectral Variability
Suyeon Son, Minjin Kim, Luis C. Ho +1
To investigate the physical origin of the Balmer decrement in the broad-line region of active galactic nuclei (AGNs), we measure the temporal variability of the fluxes of the broad…
Temperature Profiles of Accretion Disks in Luminous Active Galactic Nuclei derived from Ultraviolet Spectroscopic Variability
Suyeon Son, Minjin Kim, Luis C. Ho
The characteristic timescale () of continuum variability of the accretion disk in active galactic nuclei (AGNs) is known to be related to the thermal timescale, which is predict…
The Size-luminosity Relation of the AGN Torus Determined from the Comparison between Optical and Mid-infrared Variability
Minjin Kim, Suyeon Son, Luis C. Ho
We investigate the optical variability of low-redshift () active galactic nuclei using the multi-epoch data from the Zwicky Transient Facility. We find that a dampe…
The Structure Function of Mid-infrared Variability in Low-redshift Active Galactic Nuclei
Suyeon Son, Minjin Kim, Luis C. Ho
Using the multi-epoch mid-infrared (MIR) photometry from the Wide-field Infrared Survey Explorer spanning a baseline of yr, we extensively investigate the MIR variability…