activity
20232026
most citedMulti-wavelength properties of changing-state active galactic nuclei: I. the evolution of soft excess and X-ray continuum

5 citations · 13 across the 13 of their papers we have counts for

collaborators

14 papers

astro-ph.GA2026

Extreme Variability Reveals How the Eddington Ratio Regulates Coronal Power in Active Galactic Nuclei

Arghajit Jana, Claudio Ricci, Franz E. Bauer +13

The bolometric luminosity () of active galactic nuclei (AGNs) is a key tracer of accretion physics, but its direct determination is often hindered by limited spectral…

astro-ph.GA2026

Constraining the Physical Properties of Quadruply Lensed Quasars using Optical-to-X-Ray Data

Kriti Kamal Gupta, Dominique Sluse, Maarten Baes +5

Gravitational lensing of luminous active galactic nuclei (AGN; or quasars) can be used as a natural telescope to zoom in on their inner structures. With more and more lensed AGN be…

astro-ph.HE2026

The Millimeter/X-ray Relation in Rapidly Accreting Supermassive Black Holes at

Sophie M. Venselaar, Claudio Ricci, Santiago Del Palacio +12

A tight correlation between nuclear millimeter and X-ray emission has recently been found in nearby () and low-Eddington ratio () radio-quiet Active Ga…

astro-ph.GA2026

Resolved UV-Optical HST Imaging and Spectral Energy Distribution Modeling of Nearby BAT Active Galactic Nuclei

Connor Auge, Michael Koss, Kriti K. Gupta +17

We use high-resolution UV-to-optical imaging from the Hubble Space Telescope (HST) to construct spatially resolved spectral energy distributions (SEDs) for seven nearby ()…

astro-ph.HE2026★ 5 cited

Multi-wavelength properties of changing-state active galactic nuclei: I. the evolution of soft excess and X-ray continuum

Arghajit Jana, Claudio Ricci, Alessia Tortosa +11

Changing-state active galactic nuclei (CSAGNs) exhibit rapid variability, with mass accretion rates that can change by several orders of magnitude in a few years. This provides us…

astro-ph.GA2025

BASS LIV. Physical Properties of AGN-Hosting Galaxy Mergers from Multiwavelength SED Fitting

Marco Troncoso, Ezequiel Treister, Alejandra Rojas +17

Galaxy mergers are believed to play an important role in triggering rapid supermassive black hole (SMBH) growth. As merging nuclei approach each other, the physical properties of t…

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

Insights for Early Massive Black Hole Growth from JWST Detection of the [Ne v] λ3427 Emission Line

Benny Trakhtenbrot, Claudio Ricci, Ezequiel Treister +7

We use the narrow [Ne v] 3427 emission line detected in the recently published JWST spectra of two galaxies, at z = 6.9 and 5.6, to study the key properties of the active galact…

astro-ph.GA2025★ 1 cited

BASS. XLIV. Morphological preferences of local hard X-ray selected AGN

Miguel Parra Tello, Franz E. Bauer, Demetra De Cicco +20

We present morphological classifications for the hosts of 1189 hard X-ray selected (14-195 keV) active galactic nuclei (AGNs) from the Swift-BAT 105-month catalog as part of the BA…

astro-ph.HE2024

BASS XLI: the correlation between Mid-infrared emission lines and Active Galactic Nuclei emission

M. Bierschenk, C. Ricci, M. J. Temple +22

We analyze the Spitzer spectra of 140 active galactic nuclei (AGN) detected in the hard X-rays (14-195 keV) by the Burst Alert Telescope (BAT) on board Swift. This sample allows us…

astro-ph.GA2024

BASS. XLIII: Optical, UV, and X-ray emission properties of unobscured Swift/BAT active galactic nuclei

Kriti K. Gupta, Claudio Ricci, Matthew J. Temple +19

We present one of the largest multiwavelength studies of simultaneous optical-to-X-ray spectral energy distributions (SEDs) of unobscured active galactic nuclei (AGN) in the local…

astro-ph.CO2024★ 2 cited

JWST Lensed quasar dark matter survey II: Strongest gravitational lensing limit on the dark matter free streaming length to date

Ryan E. Keeley, Anna M. Nierenberg, Daniel Gilman +20

This is the second in a series of papers in which we use JWST MIRI multiband imaging to measure the warm dust emission in a sample of 31 multiply imaged quasars, to be used as a pr…

astro-ph.HE2023★ 1 cited

BASS XLII: The relation between the covering factor of dusty gas and the Eddington ratio in nearby active galactic nuclei

C. Ricci, K. Ichikawa, M. Stalevski +25

Accreting supermassive black holes (SMBHs) located at the center of galaxies are typically surrounded by large quantities of gas and dust. The structure and evolution of this circu…

astro-ph.HE2023★ 4 cited

Ray-tracing simulations of the Soft X-ray Scattered Emission in obscured Active Galactic Nuclei

Jeffrey McKaig, Claudio Ricci, Stéphane Paltani +3

Most Active Galactic Nuclei (AGN) in the local Universe are obscured. In these obscured AGN an excess is usually observed in the soft X-rays below ~2 keV above the absorbed X-ray c…