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astro-ph.GA2025

Continuum Reverberation Mapping of 18 AGN Over Four Years

Jake A. Miller, Edward M. Cackett, Misty C. Bentz +3

Continuum reverberation mapping probes the size scale of the optical continuum-emitting region in active galactic nuclei (AGN). The source of this emission has long been thought to…

astro-ph.GA2025

Intensive X-ray/UVOIR continuum reverberation mapping of the Seyfert AGN MCG+08-11-11

D. Kynoch, I. M. McHardy, E. M. Cackett +11

We present results from intensive (x3 daily), three-month-long X-ray, UV and optical monitoring of the bright Seyfert active galactic nucleus (AGN) MCG+08-11-11 with Swift, support…

astro-ph.GA2025

AGN STORM 2. XI. Spectroscopic reverberation mapping of the hot dust in Mrk 817

Hermine Landt, Benjamin D. Boizelle, Michael S. Brotherton +41

The AGN Space Telescope and Optical Reverberation Mapping 2 (STORM 2) campaign targeted Mrk 817 with intensive multi-wavelength monitoring and found its soft X-ray emission to be s…

astro-ph.HE2025

XRISM/Resolve Spectroscopy of the Central Engine in the Seyfert-1 AGN Mrk 279

Jon M. Miller, Xin Xiang, Doyee Byun +9

High-resolution X-ray spectroscopy with XRISM gives an unprecedented view of the ``central engine'' in active galactic nuclei, providing unique insights into black hole accretion a…

astro-ph.HE2025

Dual perspectives on GX 17+2: a simultaneous NICER and NuSTAR study

Malu Sudha, Renee M. Ludlam, Jeroen Homan +3

We performed the first simultaneous NICER & NuSTAR spectral and timing study of the Sco-like Z source GX 17+2. The source traced the full Z track during four observations. We detec…

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…