277 citations · 1.1k across the 25 of their papers we have counts for
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The most luminous blue quasars at . I. A tale of two X-ray populations
E. Nardini, E. Lusso, G. Risaliti +8
(abridged) We present the X-ray analysis of a sample of 30 luminous quasars at with deep XMM-Newton observations, selected from the SDSS-DR7 to be representative o…
The nature of the broadband X-ray variability in the dwarf Seyfert galaxy NGC 4395
E. S. Kammoun, E. Nardini, A. Zoghbi +14
We present a flux-resolved X-ray analysis of the dwarf Seyfert 1.8 galaxy NGC 4395, based on three archival and one archival observations. The source is known…
Tension with the flat ΛCDM model from a high redshift Hubble Diagram of supernovae, quasars and gamma-ray bursts
E. Lusso, E. Piedipalumbo, G. Risaliti +4
In the current framework, the standard parametrization of our Universe is the so-called Lambda Cold Dark Matter (ΛCDM) model. Recently, Risaliti & Lusso (2019) have shown a ~4σ ten…
The gentle monster PDS 456: the kpc scale molecular outflow and its implications for QSO feedback
M. Bischetti, E. Piconcelli, C. Feruglio +12
We report on the first ALMA observation of the CO(32) and rest-frame ~340 GHz continuum emission in PDS 456, which is the most luminous, radio-quiet QSO in the local Universe ($…
A Low-Flux State in IRAS 00521-7054 seen with NuSTAR and XMM-Newton: Relativistic Reflection and an Ultrafast Outflow
D. J. Walton, E. Nardini, L. C. Gallo +8
We present results from a deep, coordinated -+ observation of the Seyfert 2 galaxy IRAS 00521-7054. The data provide the first detection of this sourc…
A deep X-ray view of the bare AGN Ark120. V. Spin determination from disc-Comptonisation efficiency method
D. Porquet, C. Done, J. N. Reeves +13
[Abridged] In our previous work on Ark 120, we found that its 2014 X-ray spectrum is dominated by Comptonisation, while the relativistic reflection emission only originates at tens…