activity
20052026
most citedActive Galactic Nuclei: what's in a name?

649 citations · 11.1k across the 199 of their papers we have counts for

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Showing astro-ph.HEShow all

46 papers · 1 filter

astro-ph.HE2026

Optical Spectroscopy of TeV-emitting BL Lac Candidates

Cassidy Metzger, Ryan C. Hickox, John R. Thorstensen

TeV-emitting BL Lacertae (BL Lac) blazars have important implications for the study of jet phenomenology, particle acceleration, and ultra high-energy cosmic ray production. They a…

astro-ph.HE2026

A Multiwavelength Study of a Long-Duration VHE Flare from BL Lacertae with VERITAS

Atreya Acharyya, Avery Archer, Priyadarshini Bangale +72

We report the first observations of a long-duration very-high-energy (VHE; GeV) flare from BL Lacertae (VER J2202+422), taken with the Very Energetic Radiation Imaging Te…

astro-ph.HE2024

Monitoring Observations of SMC X-1's Excursions (MOOSE) III: X-ray Spectroscopy of a Warped, Precessing Accretion Disc

Rawan Karam, Kristen C. Dage, Bailey E. Tetarenko +11

The MOOSE (Monitoring Observations of SMC X-1 Excursions) program uses the Neutron Star Interior Composition Explorer Mission (NICER) to monitor the high mass X-ray binary SMC X-1…

astro-ph.HE2024

The NuSTAR Serendipitous Survey: the 80-month catalog and source properties of the high-energy emitting AGN and quasar population

Claire L. Greenwell, Lizelke Klindt, George B. Lansbury +32

We present a catalog of hard X-ray serendipitous sources detected in the first 80 months of observations by the Nuclear Spectroscopic Telescope Array (NuSTAR). The NuSTAR serendipi…

astro-ph.HE2023★ 3 cited

The High Energy X-ray Probe (HEX-P): Bringing the Cosmic X-ray Background into Focus

Francesca Civano, Xiurui Zhao, Peter Boorman +29

Since the discovery of the cosmic X-ray background (CXB), astronomers have strived to understand the accreting supermassive black holes (SMBHs) contributing to its peak in the 10-4…

astro-ph.HE2023★ 3 cited

The High Energy X-ray Probe (HEX-P): The Future of Hard X-ray Dual AGN Science

Ryan W. Pfeifle, Peter G. Boorman, Kimberly A. Weaver +15

A fundamental goal of modern-day astrophysics is to understand the connection between supermassive black hole (SMBH) growth and galaxy evolution. Merging galaxies offer one of the…