395 citations · 5.1k across the 121 of their papers we have counts for
122 papers
HYPerluminous quasars at the Epoch of ReionizatION (HYPERION). A new regime for the X-ray nuclear properties of the first quasars
L. Zappacosta, E. Piconcelli, F. Fiore +40
The existence of luminous quasars (QSO) at the Epoch of Reionization (EoR; i.e. z>6) powered by supermassive black holes (SMBH) with masses challenges models…
X-Ray Detection of the Galaxy's Missing Baryons in the Circum-Galactic Medium of L Galaxies
Fabrizio Nicastro, Yair Krongold, Taotao Fang +10
The amount of baryons hosted in the disks of galaxies is lower than expected based on the mass of their dark-matter halos and the fraction of baryon-to-total matter in the universe…
Time Evolving Photo Ionisation Device (TEPID): a novel code for out-of-equilibrium gas ionisation
Alfredo Luminari, Fabrizio Nicastro, Yair Krongold +2
Photoionisation is one of the main mechanisms at work in the gaseous environment of bright astrophysical sources. Many information on the gas physics, chemistry and kinematics, as…
The Athena X-ray Integral Field Unit: a consolidated design for the system requirement review of the preliminary definition phase
Didier Barret, Vincent Albouys, Jan-Willem den Herder +296
The Athena X-ray Integral Unit (X-IFU) is the high resolution X-ray spectrometer, studied since 2015 for flying in the mid-30s on the Athena space X-ray Observatory, a versatile ob…
The WISSH quasars project X. Discovery of a multi-component and highly-variable UV ultra-fast outflow in a z=3.6 quasar
G. Vietri, T. Misawa, E. Piconcelli +16
We report on the variability of a multi-component broad absorption line (BAL) system observed in the hyper-luminous quasar J1538+0855 at z=3.6. Observations from SDSS, VLT, LBT and…
Absorption studies of the most diffuse gas in the Large Scale Structure
Fabrizio Nicastro, Taotao Fang, Smita Mathur
As the Universe evolves, it develops a web of filamentary structure of matter. This cosmic web is filled with gas, with the most diffuse gas lying in the intergalactic regions. At…