115 citations · 826 across the 58 of their papers we have counts for
10 papers · 1 filter
Molecular gas and dust properties in quasar hosts
Francesco Salvestrini, Chiara Feruglio, Roberta Tripodi +12
Observational campaigns hunting the elusive reservoirs of cold gas in the host galaxies of quasars at the epoch of reionization (EoR) are crucial for studying the formation and evo…
HYPERION: broad-band X-ray-to-near-infrared emission of Quasars in the first billion years of the Universe
I. Saccheo, A. Bongiorno, E. Piconcelli +41
We aim at characterizing the X-ray-to-optical/near-infrared broad-band emission of luminous QSOs in the first Gyr of cosmic evolution to understand whether they exhibit differences…
HYPERION. Shedding light on the first luminous quasars: A correlation between UV disc winds and X-ray continuum
A. Tortosa, L. Zappacosta, E. Piconcelli +41
One of the main open questions in the field of luminous () quasars (QSOs) at is the rapid formation (Gyr) of their superm…
BASS XLI: the correlation between Mid-infrared emission lines and Active Galactic Nuclei emission
M. Bierschenk, C. Ricci, M. J. Temple +22
We analyze the Spitzer spectra of 140 active galactic nuclei (AGN) detected in the hard X-rays (14-195 keV) by the Burst Alert Telescope (BAT) on board Swift. This sample allows us…
BASS. XLIII: Optical, UV, and X-ray emission properties of unobscured Swift/BAT active galactic nuclei
Kriti K. Gupta, Claudio Ricci, Matthew J. Temple +19
We present one of the largest multiwavelength studies of simultaneous optical-to-X-ray spectral energy distributions (SEDs) of unobscured active galactic nuclei (AGN) in the local…
Investigating the interplay between the coronal properties and the hard X-ray variability of active galactic nuclei with NuSTAR
Roberto Serafinelli, Alessandra De Rosa, Alessia Tortosa +11
Active galactic nuclei (AGN) are extremely variable in the X-ray band down to very short timescales. However, the driver behind the X-ray variability is still poorly understood. Pr…
A second view on the X-ray polarization of NGC 4151 with IXPE
V. E. Gianolli, S. Bianchi, E. Kammoun +21
We report on the second observing program of the active galactic nucleus NGC 4151 with simultaneous Imaging X-ray Polarimetry Explorer (IXPE; {\sim}750 ks), NuSTAR ({\sim}60 ks), X…
The origin of the soft excess in the luminous quasar HE 1029-1401
B. Vaia, F. Ursini, G. Matt +7
The enigmatic and intriguing phenomenon of the "soft excess" observed in the X-ray spectra of luminous quasars continues to be a subject of considerable interest and debate in the…
Joint ALMA/X-ray monitoring of the radio-quiet type 1 AGN IC 4329A
E. Shablovinskaya, C. Ricci, C-S. Chang +20
The origin of a compact millimeter (mm, 100-250 GHz) emission in radio-quiet active galactic nuclei (RQ AGN) remains debated. Recent studies propose a connection with self-absorbed…
HYPERION. Coevolution of supermassive black holes and galaxies at and the build-up of massive galaxies
R. Tripodi, C. Feruglio, F. Fiore +22
We used low- to high-frequency ALMA observations to investigate the cold gas and dust in ten QSOs at . Our analysis of the CO(6-5) and CO(7-6) emission lines in the sel…