activity
20112026
most citedA 10,000-solar-mass black hole in the nucleus of a bulgeless dwarf galaxy

79 citations · 335 across the 23 of their papers we have counts for

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Showing astro-ph.GAShow all

17 papers · 1 filter

astro-ph.GA2026

Discovery of four Narrow-line Type-1 Quasars at z = 2.54 -- 6.06 with Subaru 'Onohi'ula PFS-SSP

Ayumi Takahashi, Yoshiki Matsuoka, Yoshiki Toba +21

We report the discovery of four narrow-line type-1 quasars (NLQ1s) from the Subaru 'Onohi'ula Prime Focus Spectrograph Subaru Strategic Program (PFS-SSP). To extend a comprehensive…

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…

astro-ph.GA2022

Exploring the Fundamental Mechanism in Driving Highest-velocity Ionized Outflows in Radio AGNs

Ashraf Ayubinia, Yongquan Xue, Jong-Hak Woo +4

We investigate the ionized gas kinematics relationship with X-ray, radio and accreting properties using a sample of 348 nearby () SDSS-FIRST-X-ray detected AGNs. X-ray pro…

astro-ph.GA2021★ 6 cited

AGN lifetimes in UV-selected galaxies: a clue to supermassive black hole-host galaxy coevolution

Xiaozhi Lin, Yongquan Xue, Guanwen Fang +3

The coevolution between supermassive black holes (SMBHs) and their host galaxies has been proposed for more than a decade, albeit with little direct evidence about black hole accre…

astro-ph.GA2020★ 25 cited

Calibrating Mg II-based black-hole mass estimators using Low-to-High-Luminosity Active Galactic Nuclei

Huynh Anh N. Le, Jong-Hak Woo, Yongquan Xue

We present single-epoch black-hole mass (\mbh) estimators based on the rest-frame ultraviolet (UV) \MgII\ 2798Å and optical \Hb\ 4861Å emission lines. To enlarge the luminosity ran…