activity
20222026
most citedA New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei

43 citations · 51 across the 9 of their papers we have counts for

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8 papers · 1 filter

astro-ph.GA2026

An Attenuation Bump at z=9.3: Probing Dust Diversity at Cosmic Dawn

Giulia Rodighiero, Santiago Álvarez-Córdoba, Michele Catone +46

We report the identification of a UV attenuation bump in the Black Pearl, a galaxy at a spectroscopic redshift of 9.3335 observed with JWST/NIRSpec as part of the ZENITH and EMBER…

astro-ph.GA2026

Super-Eddington Accretion and Early-Stage Feedback in Ton S180

Pierpaolo Condò, Giacomo Venturi, Eleonora Parlanti +15

Narrow-line Seyfert 1 (NLSy1) galaxies are key laboratories for studying rapid supermassive black hole (SMBH) growth and active galactic nucleus (AGN) feedback at high accretion ra…

astro-ph.GA2025

Interaction of the relativistic jet and the narrow-line region of PMN J0948+0022

B. Dalla Barba, M. Berton, L. Foschini +6

We have analyzed publicly available optical spectra of PMN J0948+0022 obtained with the Sloan Digital Sky Survey, X-Shooter, and the Multi Unit Spectroscopic Explorer (MUSE). Initi…

astro-ph.GA2025★ 4 cited

An optical perspective on early-stage AGN with extreme radio flares

Luca Crepaldi, Marco Berton, Benedetta Dalla Barba +4

In the last decade of Active Galactic Nuclei (AGN) monitoring programs, the Metsähovi Radio Observatory detected multiple times seven powerful flaring narrow-line Seyfert 1 (NLS1)…

astro-ph.GA2024★ 4 cited

The host galaxy of low-luminosity compact sources

A. Vietri, M. Berton, E. Järvelä +6

The term 'active galactic nuclei' (AGN) subtends a huge variety of objects, classified on their properties at different wavelengths. Peaked sources (PS) represent a class of AGN at…

astro-ph.GA2024

X-ray properties of two complementary samples of intermediate Seyfert galaxies

Benedetta Dalla Barba, Luigi Foschini, Marco Berton +2

We present the X-ray spectral analysis of two complementary sets of intermediate Seyfert galaxies (ISs). Analyzing X-ray data, we estimate the hydrogen abundance and test its…

astro-ph.GA2023

A large jet narrow-line Seyfert 1 galaxy: observations from pc to 100 kpc scales

Sina Chen, Preeti Kharb, Silpa Sasikumar +11

We present new 1.5-8.5 GHz Very Long Baseline Array (VLBA) observations and 0.32-1.26 GHz Giant Meterwave Radio Telescope (GMRT) observations of J0354-1340, which is the only known…

astro-ph.GA2023

Optical properties of two complementary samples of intermediate Seyfert galaxies

Benedetta Dalla Barba, Marco Berton, Luigi Foschini +3

We present preliminary results of the analysis of optical spectra of two complementary samples of Seyfert galaxies. The first sample was extracted from a selection of the 4th Fermi…