activity
20172026
most citedGamma-ray Emitting Narrow Line Seyfert 1 Galaxies in The Sloan Digital Sky Survey

65 citations · 141 across the 18 of their papers we have counts for

collaborators
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11 papers · 1 filter

astro-ph.GA2026

Detection of time delay between UV and X-ray variability in Mrk 1044 using AstroSat observations

M. Reshma, C. S. Stalin, Amit Kumar Mandal +3

Active galactic nuclei are known to exhibit flux variations across the entire electromagnetic spectrum. Among these, correlations between UV/optical and X-ray flux variations serve…

astro-ph.GA2024

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…

astro-ph.GA2024

Revisiting the dust torus size-luminosity relation based on a uniform reverberation mapping analysis

Amit Kumar Mandal, Jong-Hak Woo, Shu Wang +4

We investigate the torus size -- luminosity relation of Type 1 AGNs based on the reverberation-mapping analysis using the light curves of the optical continuum and the IR continuum…

astro-ph.GA2024

Identifying changing-look AGNs using variability characteristics

Shu Wang, Jong-Hak Woo, Elena Gallo +7

Changing-look (CL) Active Galactic Nuclei (AGNs), characterized by appearance/disappearance of broad emission lines in the span of a few years, present a challenge for the AGN unif…

astro-ph.GA2023

The Seoul National University AGN Monitoring Project III: H lag measurements of 32 luminous AGNs and the high-luminosity end of the size--luminosity relation

Jong-Hak Woo, Shu Wang, Suvendu Rakshit +28

We present the main results from a long-term reverberation mapping campaign carried out for the Seoul National University Active Galactic Nuclei (AGN) Monitoring Project. High-qual…

astro-ph.GA2023

The Seoul National University AGN Monitoring Project IV: H reverberation mapping of 6 AGNs and the H Size-Luminosity Relation

Hojin Cho, Jong-Hak Woo, Shu Wang +29

The broad line region (BLR) size-luminosity relation has paramount importance for estimating the mass of black holes in active galactic nuclei (AGNs). Traditionally, the size of th…