activity
20242026
most citedTesting X-ray Reprocessing and Mapping the Soft Excess of NGC 7469 with NICER

3 citations · 3 across the 2 of their papers we have counts for

collaborators

5 papers

astro-ph.GA2026

AGN STORM 2. XII. Ground-Based Optical Photometry and Lag Measurements of Mrk 817

John W. Montano, Aaron J. Barth, Keith Horne +40

We present the ground-based imaging campaign and light curves of Markarian 817 as part of the multiwavelength monitoring program AGN STORM\,2. Observations were carried out over 1.…

astro-ph.HE2025

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.HE20253 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

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

AGN STORM 2. VII. A Frequency-resolved Map of the Accretion Disk in Mrk 817: Simultaneous X-ray Reverberation and UVOIR Disk Reprocessing Time Lags

Collin Lewin, Erin Kara, Aaron J. Barth +35

X-ray reverberation mapping is a powerful technique for probing the innermost accretion disk, whereas continuum reverberation mapping in the UV, optical, and infrared (UVOIR) revea…