High Eddington quasars as discovery tools: Current state and challenges
S Panda, P Marziani - Frontiers in Astronomy and Space Sciences, 2023 - frontiersin.org
A landmark of accretion processes in active galactic nuclei (AGN) is the continuum
originating from a complex structure, ie, an accretion disk and a corona around a …
originating from a complex structure, ie, an accretion disk and a corona around a …
The Sloan Digital Sky Survey Reverberation Mapping Project: estimating masses of black holes in quasars with single-epoch spectroscopy
E Dalla Bontà, BM Peterson, MC Bentz… - The Astrophysical …, 2020 - iopscience.iop.org
It is well known that reverberation mapping of active galactic nuclei (AGNs) reveals a
relationship between AGN luminosity and the size of the broad-line region, and that use of …
relationship between AGN luminosity and the size of the broad-line region, and that use of …
Past, Present, and Future of the Scaling Relations of Galaxies and Active Galactic Nuclei
M D'Onofrio, P Marziani, C Chiosi - Frontiers in Astronomy and Space …, 2021 - frontiersin.org
We review the properties of the established Scaling Relations (SRs) of galaxies and active
galactic nuclei (AGN), focusing on their origin and expected evolution back in time, providing …
galactic nuclei (AGN), focusing on their origin and expected evolution back in time, providing …
The radius–luminosity relationship depends on optical spectra in active galactic nuclei
P Du, JM Wang - The Astrophysical Journal, 2019 - iopscience.iop.org
The radius–luminosity () relationship of active galactic nuclei (AGNs) established by the
reverberation mapping (RM) observations has been widely used as a single-epoch black …
reverberation mapping (RM) observations has been widely used as a single-epoch black …
Size matters: are we witnessing super-Eddington accretion in high-redshift black holes from JWST?
Observations by the James Webb Space Telescope of the Universe at z≳ 4 have shown that
massive black holes (MBHs) appear to be extremely overmassive compared to the local …
massive black holes (MBHs) appear to be extremely overmassive compared to the local …
The Lick AGN Monitoring Project 2016: velocity-resolved Hβ lags in luminous Seyfert galaxies
We carried out spectroscopic monitoring of 21 low-redshift Seyfert 1 galaxies using the Kast
double spectrograph on the 3 m Shane telescope at Lick Observatory from 2016 April to …
double spectrograph on the 3 m Shane telescope at Lick Observatory from 2016 April to …
Quasar UV/X-ray relation luminosity distances are shorter than reverberation-measured radius–luminosity relation luminosity distances
We use measurements of 59/58 quasars (QSOs), over a redshift range 0.0041≤ z≤ 1.686,
to do a comparative study of the radius–luminosity (R− L) and X-ray− UV luminosity (LX …
to do a comparative study of the radius–luminosity (R− L) and X-ray− UV luminosity (LX …
Do quasar X-ray and UV flux measurements provide a useful test of cosmological models?
The recent compilation of quasar (QSO) X-ray and ultraviolet (UV) flux measurements
include QSOs that appear to not be standardizable via the X-ray luminosity and UV …
include QSOs that appear to not be standardizable via the X-ray luminosity and UV …
In Situ Star Formation in Accretion Disks and Explanation of Correlation between the Black Hole Mass and Metallicity in Active Galactic Nuclei
X Fan, Q Wu - The Astrophysical Journal, 2023 - iopscience.iop.org
Recent observations show that the metallicity Z BLR of the broad-line region (BLR) in active
galactic nuclei (AGNs) is solar to supersolar, which is positively correlated with the mass of …
galactic nuclei (AGNs) is solar to supersolar, which is positively correlated with the mass of …
Time Delay of Mg ii Emission Response for the Luminous Quasar HE 0435-4312: toward Application of the High-accretor Radius–Luminosity Relation in Cosmology
Using six years of spectroscopic monitoring of the luminous quasar HE 0435-4312 (z=
1.2231) with the Southern African Large Telescope, in combination with photometric data …
1.2231) with the Southern African Large Telescope, in combination with photometric data …