314 citations · 749 across the 21 of their papers we have counts for
8 papers · 1 filter
Prediction of Star Formation Rates Using an Artificial Neural Network
Ashraf Ayubinia, Jong-hak Woo, Fatemeh Hafezianzadeh +2
In this study, we develop an artificial neural network to estimate the infrared (IR) luminosity and star formation rates (SFR) of galaxies. Our network is trained using 'true' IR l…
Dormancy and Reawakening Over Years: Eight New Recurrent Changing-Look AGNs
Shu Wang, Jong-Hak Woo, Elena Gallo +5
We report the discovery of eight new recurrent changing-look (CL) active galactic nuclei (AGNs), including seven re-brightening turn-off AGNs and one fading turn-on AGN. These syst…
Spectrophotometric reverberation mapping of Intermediate-mass black hole NGC 4395
Shivangi Pandey, Suvendu Rakshit, Krishan Chand +8
Understanding the origins of massive black hole seeds and their co-evolution with their host galaxy requires studying intermediate-mass black holes (IMBHs) and estimating their mas…
Revisiting the H Size-Luminosity Relation Using a Uniform Reverberation-Mapping Analysis
Shu Wang, Jong-Hak Woo
We revisit the relation between active galactic nucleus (AGN) broad-line region (BLR) size and luminosity by conducting a uniform H reverberation-mapping analysis for 212 AGNs w…
Spectro-polarimetric view of the gamma-ray emitting NLS1 1H0323+342
Jincen Jose, Suvendu Rakshit, Swayamtrupta Panda +4
The gamma-ray emitting narrow-line Seyfert 1 galaxies are a unique class of objects that launch powerful jets from relatively lower-mass black hole systems compared to the Blazars.…
Constraining the Low-Mass End of the Black Hole Mass Function and the Active Fraction of the Intermediate-mass Black Holes
Hojin Cho, Jong-Hak Woo
We investigate the black hole mass function (BHMF) and the Eddington ratio distribution function (ERDF), focusing on the intermediate-mass black holes (IMBHs) with masses down to $…