299 citations · 1.1k across the 25 of their papers we have counts for
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A bias-free cosmological analysis with quasars alleviating tension
Aleksander Łukasz Lenart, Giada Bargiacchi, Maria Giovanna Dainotti +2
Cosmological models and their parameters are widely debated because of theoretical and observational mismatches of the standard cosmological model, especially the current discrepan…
Quasars as high-redshift standard candles
A. Sacchi, G. Risaliti, M. Signorini +10
The non-linear relation between the X-ray and ultraviolet (UV) luminosity in quasars has been used to derive quasar distances and to build a Hubble diagram at redshifts up to $z\si…
Quasar standardization: Overcoming Selection Biases and Redshift Evolution
Maria Giovanna Dainotti, Giada Bardiacchi, Aleksander Lukasz Lenart +5
Quasars (QSOs) are extremely luminous active galatic nuclei currently observed up to redshift . As such, they have the potential to be the next rung of the cosmic distance…
Optical and X-ray GRB Fundamental Planes as Cosmological Distance Indicators
Maria Giovanna Dainotti, Via Nielson, Giuseppe Sarracino +5
Gamma-Ray Bursts (GRBs), can be employed as standardized candles, extending the distance ladder beyond Supernovae Type Ia (SNe Ia, ). We standardize GRBs using the 3D funda…
Revealing Intrinsic Flat CDM Biases with Standardizable Candles
Eoin Ó Colgáin, M. M. Sheikh-Jabbari, Rance Solomon +4
Emerging high redshift cosmological probes, in particular quasars (QSOs), show a preference for larger matter densities, , within the flat CDM framework. Here,…