299 citations · 1.1k across the 25 of their papers we have counts for
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Quasar cosmology: dark energy evolution and spatial curvature
G. Bargiacchi, M. Benetti, S. Capozziello +3
We analyse some open debates in cosmology in light of the most updated quasar (QSO) sample, covering a wide redshift range up to , combined with type Ia supernovae (SNe)…
The most luminous blue quasars at 3.0<z<3.3. II. CIV/X-ray emission and accretion disc physics
Elisabeta Lusso, Emanuele Nardini, Susanna Bisogni +12
We analyse the properties of the CIV broad emission line in connection with the X-ray emission of 30 bright SDSS quasars at z~3.0-3.3 with pointed XMM-Newton observations, which we…
Cosmography by orthogonalized logarithmic polynomials
Giada Bargiacchi, G. Risaliti, M. Benetti +4
Cosmography is a powerful tool to investigate the Universe kinematic and then to reconstruct dynamics in a model-independent way. However, recent new measurements of supernovae Ia…