223 citations · 1.8k across the 33 of their papers we have counts for
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You can't see me: Super-Eddington growth hindering X-ray detection in high-z broad-line active galactic nuclei
Alessandro Trinca, Alessandro Lupi, Francesco Haardt +1
We revisit black hole mass estimates for high-redshift broad-line active galactic nuclei (AGNs) discovered with JWST by jointly analysing their broad emission lines and their syste…
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…
25 years of XMM-Newton observations of the Sgr A complex: 3D distribution and internal structure of the clouds
G. Stel, G. Ponti, F. Haardt +1
Sgr A* is currently very faint. However, X-ray radiation reflected by the Sgr A complex, a group of nearby molecular clouds, suggests that it went through one or more periods of hi…
X-Ray Weak AGNs from Super-Eddington Accretion onto Infant Black Holes
Piero Madau, Francesco Haardt
A simple model for the X-ray weakness of JWST-selected broad-line AGNs is proposed under the assumption that the majority of these sources are fed at super-Eddington accretion rate…
Cyclostationary signals in LISA: a practical application to Milky Way satellites
Federico Pozzoli, Riccardo Buscicchio, Antoine Klein +3
One of the primary sources of gravitational waves (GWs) anticipated to be detected by the Laser Interferometer Space Antenna (LISA) are Galactic double white dwarf binaries (DWDs).…
Young and turbulent: the early life of massive galaxy progenitors
Davide Fiacconi, Lucio Mayer, Piero Madau +3
We present results from the "Ponos" simulation suite on the early evolution of a massive, M galaxy. At , before feedback f…
Growing massive black holes through super-critical accretion of stellar-mass seeds
A. Lupi, F. Haardt, M. Dotti +3
The rapid assembly of the massive black holes that power the luminous quasars observed at remains a puzzle. Various direct collapse models have been proposed to head-s…