537 citations · 3k across the 121 of their papers we have counts for
11 papers · 1 filter
ESPRESSO reveals a single but perturbed broad-line region in the supermassive black hole binary candidate PG 1302-102
Fabio Rigamonti, Paola Severgnini, Erika Sottocorno +12
We present a new, Bayesian analysis of the highest-resolution optical spectrum of the supermassive black hole (SMBH) binary candidate PG 1302-102, obtained with ESPRESSO@VLT (R \si…
Decomposing galaxies with BANG: an automated morpho-kinematical decomposition of the SDSS-DR17 MaNGA survey
Fabio Rigamonti, Massimo Dotti, Stefano Covino +4
From a purely photometric perspective galaxies are generally decomposed into a bulge+disc system, with bulges being dispersion-dominated and discs rotationally-supported. However,…
Maximally informed Bayesian modelling of disc galaxies
Fabio Rigamonti, Massimo Dotti, Stefano Covino +5
Dissecting the underlying structure of galaxies is of main importance in the framework of galaxy formation and evolution theories. While a classical bulge+disc decomposition of dis…
A possible sub-kiloparsec dual AGN buried behind the galaxy curtain
P. Severgnini, V. Braito, C. Cicone +11
Although thousands of galaxy mergers are known, only a handful of sub-kiloparsec-scale supermassive black hole (SMBH) pairs have been confirmed so far, leaving a huge gap between t…
An optical view of extragalactic gamma-ray emitters
Simona Paiano, Renato Falomo, Marco Landoni +2
The Fermi Gamma-ray Observatory discovered about a thousand extragalactic sources emitting energy from 100 MeV to 100 GeV. The majority of these sources belong to the class of blaz…
On the lensed blazar B0218+357
R. Falomo, A. Treves, R. Scarpa +2
We present an optical spectrum (4000-10500 Å ) of the lensed blazar B0218+357 secured at the 10m GTC and aimed to investigate and clarify the properties of this intriguing system.…
Spectroscopy of 10 gamma-ray BL Lac objects at high redshift
Simona Paiano, Marco Landoni, Renato Falomo +2
We present high S/N optical spectra of 10 BL Lac objects detected at GeV energies by Fermi satellite (3FGL catalog), for which previous observations suggested that they are at rela…
On the redshift of TeV BL Lac objects
Simona Paiano, Marco Landoni, Renato Falomo +3
We report results of a spectroscopic campaign carried out at the 10 m Gran Telescopio Canarias for a sample of 22 BL Lac objects detected (or candidates) at TeV energies, aimed to…
On the redshift of the very high energy γ-ray BL Lac object S2 0109+22
Simona Paiano, Marco Landoni, Renato Falomo +2
The determination of the redshift of extragalactic gamma ray sources is of fundamental importance for the interpretation of their emission models and extragalactic population studi…
The circum-galactic medium of quasars: CIV absorption systems
M. Landoni, R. Falomo, A. Treves +2
We investigate the properties of the circumgalactic gas in the halo of quasar host galaxies from CIV absorption line systems. Optical spectroscopy of closely aligned pairs of quasa…
Spectroscopy of BL Lac objects of extraordinary luminosity
Marco Landoni, Renato Falomo, Aldo Treves +1
Aims. We aim to determine the redshift (or stringent lower limits) of a number of bright BL Lacs objects. Methods. We secured medium resolution optical and near-infrared spectra of…