8 papers
Flagging Super-Eddington Candidates among Jetted, γ-Ray-Emitting AGN
Paola Marziani, Benedetta Dalla Barba, Luigi Foschini
The quasar Eigenvector-1/Main Sequence (E1/MS) provides a physically motivated empirical framework to organize the spectroscopic diversity of type~1 active galactic nuclei (AGN). I…
The growing family of gamma-ray narrow-line Seyfert 1 galaxies
Luigi Foschini
The revision of the fourth Fermi Large Area Telescope (LAT) catalog of gamma-ray point sources (rev4FGL) revealed that the gamma-ray sky is populated by emerging populations of jet…
Searching for quantum-gravity footprint around stellar-mass black holes
Luigi Foschini, Alberto Vecchiato, Alfio Bonanno
According to the asymptotically safe gravity, black holes may have characteristics different from those described according to general relativity if the running of the gravitationa…
The jetted NLS1 1H 0323+342: the Rosetta stone for accretion/ejection in AGN
Luigi Foschini
1H 0323+342 is the nearest gamma-ray narrow-line Seyfert 1 galaxy (z=0.063). Its X-ray spectrum (0.3-10 keV) is characterised by significant spectral variability observed by many a…
Insights into jet-NLR energetics in PMN J0948+0022
B. Dalla Barba, L. Foschini, M. Berton +8
The analysis of the optical spectra of PMN J0948+0022 showed significant variations in the spectral lines that, when combined with the Fermi -ray light curve and radio observat…
Revised optical classification of a sample of gamma-ray emitting AGN with GTC and VLT
B. Dalla Barba, L. Foschini, M. Berton +10
We report the results of the optical follow-up of a sample of -ray-emitting active galactic nuclei (AGN). New high-quality optical spectra were obtained using Gran Telescopio C…