activity
20152026
most citedA NuSTAR census of coronal parameters in Seyfert galaxies

115 citations · 826 across the 58 of their papers we have counts for

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Showing 2025Show all

6 papers · 1 filter

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.HE2025

XRISM/Resolve reveals the complex iron structure of NGC 7213: Evidence for radial stratification between inner disk and broad-line region

E. Kammoun, T. Kawamuro, K. Murakami +48

We present the first high-resolution X-ray spectrum of NGC 7213 obtained with XRISM/Resolve, supported by simultaneous XMM-Newton, NuSTAR, and SOAR optical data. The XRISM spectrum…

astro-ph.GA2025★ 1 cited

The WISSH quasar project. XII. X-ray view of the most luminous quasi-stellar objects at Cosmic Noon

C. Degli Agosti, C. Vignali, E. Piconcelli +25

To improve our knowledge of nuclear emission in luminous QSOs at Cosmic Noon, we studied the X-ray emission of the WISE/SDSS-selected hyper-luminous (WISSH) QSO sample: 85 broad-li…

astro-ph.GA2025

How similar are narrow-line Seyfert 1 galaxies and high-z type 1 AGN?

Marco Berton, Emilia Järvelä, Alessia Tortosa +1

The recent observations of highly accreting supermassive black holes (SMBH) at very high redshift (4) with the James Webb Space Telescope (\textit{JWST}) allowed us to shed lig…

astro-ph.GA2025

BASS LIII: The Eddington Ratio as the Primary Regulator of the Fraction of X-ray Emission in Active Galactic Nuclei

Kriti Kamal Gupta, Claudio Ricci, Alessia Tortosa +20

Active galactic nuclei (AGN) emit radiation via accretion across the entire energy spectrum. While the standard disk and corona model can somewhat describe this emission, it fails…

astro-ph.GA2025★ 8 cited

BASS. XLIX. Characterization of highly luminous and obscured AGNs: local X-ray and [NeV]3426 emission in comparison with the high-redshift Universe

Alessandro Peca, Michael J. Koss, Kyuseok Oh +21

We present a detailed analysis of the most luminous and obscured Active Galactic Nuclei (AGNs) detected in the ultra-hard X-ray band (14-195 keV) by Swift/BAT. Our sample comprises…