activity
20102026
most citedMultiwavelength campaign on Mrk 509. III. The 600 ks RGS spectrum: unravelling the inner region of an AGN

98 citations · 728 across the 24 of their papers we have counts for

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14 papers · 1 filter

astro-ph.HE2026

Persistence of the Millihertz X-ray Quasi-Periodic Oscillation in the Active Galactic Nucleus 1ES 1927+654

Megan Masterson, Erin Kara, William N. Alston +15

1ES 1927+654 is an extreme active galactic nucleus (AGN) that has defied our canonical expectations for how AGN appear across the electromagnetic spectrum and how they vary on shor…

astro-ph.HE2026

Variability of the X-ray obscuring wind in Mrk 335 with XMM-Newton/RGS

Daniele Rogantini, Erin Kara, Luigi Gallo +10

Transient X-ray obscuration in Seyfert 1 galaxies likely arises from clumpy accretion-disk winds near the broad-line region (BLR), but the wind structure and short-timescale variab…

astro-ph.HE2025★ 3 cited

The Advanced X-ray Imaging Satellite (AXIS) Community Science Book

Michael Koss, Nafisa Aftab, Steven W. Allen +395

The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (A…

astro-ph.HE2024★ 4 cited

Effects of ultra-fast outflows on X-ray time lags in AGN

Yerong Xu, Ciro Pinto, Erin Kara +3

The time lag between soft and hard X-ray photons has been observed in many active galactic nuclei (AGN) and can reveal the accretion process and geometry around supermassive black…

astro-ph.HE2024★ 1 cited

Active Galaxy Science with the Line Emission Mapper: The Case for High-Resolution Soft X-ray Spectroscopy

Kimberly A. Weaver, Jenna M. Cann, Ryan W. Pfeifle +11

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 resolutio…

astro-ph.HE2024★ 11 cited

A systematic study of the ultra-fast outflow responses to luminosity variations in active galactic nuclei

Yerong Xu, Ciro Pinto, Daniele Rogantini +7

The extreme velocities and high ionization states of ultra-fast outflows (UFOs) make them a promising candidate for AGN feedback on the evolution of the host galaxy. However, their…