activity
20032025
most citedX-ray Fluctuation Power Spectral Densities of Seyfert 1 Galaxies

270 citations · 478 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.HE2025★ 1 cited

Untangling the Complex Nature of AGN Variability with Fairall 9

Scott Hagen, Chris Done, Edward M. Cackett +5

The accretion flow in AGN is not well understood, motivating intensive monitoring campaigns of multiwavelength variability to probe its structure. One of the best of these is the 3…

astro-ph.GA2025

Infrared-Selected Active Galactic Nuclei in the Kepler Fields

Tran Tsan, Matthew Malkan, Rick Edelson +3

We utilized the Edelson and Malkan (2012) and Stern et al. (2012) selection techniques and other methods to identify AGN candidates that were monitored during the Kepler prime and…

astro-ph.HE2025★ 3 cited

Testing X-ray Reprocessing and Mapping the Soft Excess of NGC 7469 with NICER

Ethan R. Partington, Edward M. Cackett, Rick Edelson +5

We present an X-ray/UV reverberation analysis of NGC 7469 across 210 days, using daily NICER observations with contemporaneous monitoring by Swift UVOT+XRT. We model the X-ray spec…

astro-ph.HE2024★ 9 cited

Connecting the X-ray/UV variability of Fairall 9 with NICER: A Possible Warm Corona

Ethan R. Partington, Edward M. Cackett, Rick Edelson +7

The Seyfert 1 AGN Fairall 9 was targeted by NICER, Swift, and ground-based observatories for a 1000-day long reverberation mapping campaign. The following analysis of NICER s…

astro-ph.HE2024

Intensive Swift and LCO monitoring of PG 1302102: AGN disk reverberation mapping of a supermassive black hole binary candidate

Tingting Liu, Rick Edelson, Juan V. Hernández Santisteban +7

We present an intensive multiwavelength monitoring campaign of the quasar PG 1302102 with Swift and the Las Cumbres Observatory network telescopes. At , it tests the l…

astro-ph.HE2023

AGN STORM 2. VI. Mapping Temperature Fluctuations in the Accretion Disk of Mrk 817

Jack M. M. Neustadt, Christopher S. Kochanek, John Montano +49

We fit the UV/optical lightcurves of the Seyfert 1 galaxy Mrk 817 to produce maps of the accretion disk temperature fluctuations resolved in time and radius. The maps are…

astro-ph.HE2018★ 195 cited

The First Swift Intensive AGN Accretion Disk Reverberation Mapping Survey

R. Edelson, J. Gelbord, E. Cackett +32

Swift intensive accretion disk reverberation mapping of four AGN yielded light curves sampled 200-350 times in 0.3-10 keV X-ray and six UV/optical bands. Uniform reduction an…

astro-ph2003★ 270 cited

X-ray Fluctuation Power Spectral Densities of Seyfert 1 Galaxies

A. Markowitz, R. Edelson, S. Vaughan +11

By combining complementary monitoring observations spanning long, medium and short time scales, we have constructed power spectral densities (PSDs) of six Seyfert~1 galaxies. These…