92 citations · 318 across the 13 of their papers we have counts for
14 papers
The link between X-ray complexity and optical lines in NLS1s
A. Vietri, M. Berton, S. Ciroi +8
Narrow-line Seyfert 1 galaxies (NLS1s) are a subclass of active galactic nuclei (AGN). It is often believed that these AGN have small black hole mass, which is responsible for the…
The interacting late-type host galaxy of the radio-loud narrow-line Seyfert 1 IRAS 20181-2244
M. Berton, E. Congiu, S. Ciroi +15
Narrow-line Seyfert 1 galaxies (NLS1s) are a class of active galactic nuclei (AGN) which are known to be one of the few sources of rays, which originate in a relativistic beame…
Radio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspective
M. Berton, E. Congiu, E. Järvelä +14
We report the first results of a survey on 74 narrow-line Seyfert 1 galaxies (NLS1s) carried out in 2015 with the Karl G. Jansky Very Large Array (JVLA) at 5 GHz in A-configuration…
Models of emission line profiles and spectral energy distributions to characterize the multi-frequency properties of active galactic nuclei
Giovanni La Mura, Marco Berton, Sina Chen +7
The spectra of Active Galactic Nuclei (AGNs) are often characterized by a wealth of emission lines with different profiles and intensity ratios that led to a complicated classifica…
Multi-frequency databases for AGN investigation - Results and perspectives
Giovanni La Mura, Marco Berton, Sina Chen +5
Active Galactic Nuclei (AGNs) are characterized by emission of radiation over more than 10 orders of magnitude in frequency. Therefore, the execution of extensive surveys of the sk…
Extended narrow-line region in Seyfert galaxies
Enrico Congiu, Marcella Contini, Stefano Ciroi +7
We present our recent results about the extended narrow-line region (ENLR) of two nearby Seyfert 2 galaxies (IC 5063 and NGC 7212) obtained by modelling the observed line profiles…
The flat-spectrum radio quasar 3C 345 from the high to the low emission state
M. Berton, N. H. Liao, G. La Mura +17
We report simultaneous observations at different energy bands in radio, optical, UV, X-rays and rays of the flat-spectrum radio-quasar 3C 345. We built the light curve of the s…
High resolution spectroscopy of the extended narrow-line region of IC 5063 and NGC 7212
E. Congiu, M. Contini, S. Ciroi +6
We studied the properties of the gas of the extended narrow line region (ENLR) of two Seyfert 2 galaxies: IC 5063 and NGC 7212. We analysed high resolution spectra to investigate h…
Kiloparsec-scale emission in the narrow-line Seyfert 1 galaxy Mrk 783
E. Congiu, M. Berton, M. Giroletti +12
We present the first results of a radio survey of 79 narrow-line Seyfert 1 (NLS1) carried out with the Karl G. Jansky Very Large Array (JVLA) at 5 GHz in A configuration aimed at s…
An orientation-based unification of young jetted AGN: the case of 3C 286
M. Berton, L. Foschini, A. Caccianiga +6
In recent years, the old paradigm according to which only high-mass black holes can launch powerful relativistic jets in active galactic nuclei (AGN) has begun to crumble. The disc…
Relativistic plasmas in AGN jets - From synchrotron radiation to -ray emission
Giovanni La Mura, Giovanni Busetto, Stefano Ciroi +5
Relativistic jets of plasma are a key ingredient of many types of Active Galactic Nuclei (AGN). Today we know that AGNs are powered by the accretion of inter stellar material into…
Unveiling the parent population of beamed narrow-line Seyfert 1s
M. Berton, L. Foschini, S. Ciroi +11
Narrow-line Seyfert 1 galaxies (NLS1s) are active galactic nuclei (AGN) recently identified as a new class of -ray sources. The high energy emission is explained by the presence…
Compact steep-spectrum sources as the parent population of flat-spectrum radio-loud NLS1s
Marco Berton, Alessandro Caccianiga, Luigi Foschini +9
Narrow-line Seyfert 1 galaxies (NLS1s) are an interesting subclass of active galactic nuclei (AGN), which tipically does not exhibit any strong radio emission. Seven percent of the…
Exploring the parent population of beamed NLS1s: from the black hole to the jet
M. Berton, L. Foschini, S. Ciroi +11
The aim of this work is to understand the nature of the parent population of beamed narrow-line Seyfert 1 galaxies (NLS1s), by studying the physical properties of three parent cand…