180 citations · 709 across the 17 of their papers we have counts for
17 papers
The most extreme high-z radio quasars in the eRASS:1 X-ray survey
L. Ighina, L. Palmieri, L. N. Martínez-Ramírez +7
We present the selection and identification of high-z radio quasars from a combination of X-ray (eROSITA All-Sky Survey), optical/NIR (DECam Local Volume Exploration), and radio (R…
The Road to Identifying the Earliest Radio-Powerful AGN with the SKA
Jose Afonso, Stergios Amarantidis, Stas Shabala +20
The Epoch of Reionization (EoR) is one of the most pivotal frontiers in modern astrophysics, marking the emergence of the first galaxies, stars, and supermassive black holes (SMBHs…
X-ray investigation of possible super-Eddington accretion in a radio-loud quasar at
L. Ighina, A. Caccianiga, T. Connor +19
We present radio and X-ray observations of the recently discovered radio-powerful quasar RACS J032021.44352104.1 using uGMRT, ATCA, LBA, and Chandra. The observed radio…
High- radio Quasars in RACS I: Selection, identification, and multi-wavelength properties
L. Ighina, A. Caccianiga, A. Moretti +21
Radio-bright, jetted quasars at serve as unique laboratories for studying supermassive black hole activity in the early Universe. In this work, we present a sample of high-$z…
Mapping the Cosmic Gamma-ray Horizon: The 1CGH Catalogue of Fermi-LAT detections above 10 GeV
Bruno Arsioli, Yu-Ling Chang, Luca Ighina
We present the First Cosmic Gamma-ray Horizon (1CGH) catalogue, featuring -ray detections above 10 GeV based on 16 years of observations with the Fermi Large Area Telescope (LAT…
Yet Another Sunshine Mystery: Unexpected Asymmetry in GeV Emission from the Solar Disk
Bruno Arsioli, Elena Orlando
The Sun is one of the most luminous -ray sources in the sky and continues to challenge our understanding of its high-energy emission mechanisms. This study provides an in-depth…