activity
20072025
most citedA spectroscopic analysis of a sample of narrow-line Seyfert 1 galaxies selected from the Sloan Digital Sky Survey

110 citations · 353 across the 21 of their papers we have counts for

collaborators

38 papers

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.HE2025★ 1 cited

Fermi-LAT Discovery of a Gamma-ray Outburst from the Peculiar Compact Steep Spectrum Radiogalaxy 3C 216

Federica Giacchino, Giovanni La Mura, Stefano Ciprini +3

3C 216 is an extragalactic radio source classified as a compact steep spectrum (CSS) object, associated with the source 4FGL J0910.0+4257 detected by the Large Area Telescope (LAT)…

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…

astro-ph.HE2023

Identification of low energy neutral and charged cosmic ray events in large wide field observatories

L Apolinário, P. Assis, P. Brogueira +5

The lower energy thresholds of large wide-field gamma-ray observatories are often determined by their capability to deal with the very low-energy cosmic ray background. In fact, in…

astro-ph.HE2022★ 5 cited

The relation between optical and -ray emission in BL Lac sources

G. La Mura, J. Becerra Gonzalez, G. Chiaro +2

The relativistic jets produced by some Active Galactic Nuclei (AGNs) are among the most efficient persistent sources of non-thermal radiation and represent an ideal laboratory for…