Accretion disk size measurements of active galactic nuclei monitored by the Zwicky Transient Facility

WJ Guo, YR Li, ZX Zhang, LC Ho… - The Astrophysical …, 2022 - iopscience.iop.org
We compile a sample of 92 active galactic nuclei (AGNs) at z< 0.75 with gri photometric light
curves from the archival data of the Zwicky Transient Facility and measure the accretion disk …

Probing the face-on disc-corona system of the bare AGN Mrk 110 from UV to hard X-rays: A moderate changing-state AGN?

D Porquet, S Hagen, N Grosso, A Lobban… - Astronomy & …, 2024 - aanda.org
Context. The X-ray broadband spectra of the bare active galactic nucleus (AGN) Mrk 110,
obtained by simultaneous XMM-Newton and NuSTAR observations performed in November …

Simulating X-Ray Reverberation in the Ultraviolet-emitting Regions of Active Galactic Nuclei Accretion Disks with Three-dimensional Multifrequency Radiation …

A Secunda, YF Jiang, JE Greene - The Astrophysical Journal …, 2024 - iopscience.iop.org
Active galactic nuclei (AGN) light curves observed with different wave bands show that the
variability in longer wavelength bands lags the variability in shorter wavelength bands …

Negative Lags on the Viscous Timescale in Quasar Photometry and Prospects for Detecting More with LSST

A Secunda, JE Greene, YF Jiang, PZ Yao… - The Astrophysical …, 2023 - iopscience.iop.org
The variability of quasar light curves can be used to study the structure of quasar accretion
disks. For example, continuum reverberation mapping uses delays between variability in …

X-ray reverberation modelling of the continuum, optical/UV time-lags in quasars

DA Langis, IE Papadakis, E Kammoun… - Astronomy & …, 2024 - aanda.org
Context. Extensive, multi-wavelength monitoring campaigns of nearby and higher redshift
active galactic nuclei (AGN) have shown that the UV/optical variations are well correlated …

Spectroscopic reverberation mapping of Quasar PKS 0736+ 017: broad-line region and black-hole mass

S Pandey, S Rakshit, JH Woo… - Monthly Notices of the …, 2022 - academic.oup.com
To understand the mass distribution and co-evolution of supermassive black holes with their
host galaxy, it is crucial to measure the black hole mass of AGN. Reverberation mapping is a …

Estimating AGN Black Hole Masses via Continuum Reverberation Mapping in the Era of LSST

S Wang, H Guo, JH Woo - The Astrophysical Journal Letters, 2023 - iopscience.iop.org
Spectroscopic reverberation mapping (RM) is a direct approach widely used to determine
the mass of black holes (BHs) in active galactic nuclei (AGNs). However, it is very time …

The high energy X-ray probe (HEX-P): constraining supermassive black hole growth with population spin measurements

JM Piotrowska, JA García, DJ Walton… - arXiv preprint arXiv …, 2023 - arxiv.org
Constraining the primary growth channel of supermassive black holes (SMBH) remains one
the most actively debated questions in the context of cosmological structure formation …

[HTML][HTML] The high energy X-ray probe (HEX-P): constraining supermassive black hole growth with population spin measurements

JM Piotrowska, JA García, DJ Walton… - Frontiers in Astronomy …, 2024 - frontiersin.org
Constraining the primary growth channel of supermassive black holes (SMBHs) remains
one the most actively debated questions in the context of cosmological structure formation …

Active galaxy science with the line emission mapper: the case for high-resolution soft X-ray spectroscopy

KA Weaver, JM Cann, RW Pfeifle… - arXiv preprint arXiv …, 2024 - arxiv.org
This white paper discusses the breadth of science related to active galactic nuclei (AGN)
and associated phenomena to be enabled by a mission with microcalorimeter energy …