Cosmology

Optical and X-ray GRB Fundamental Planes as Cosmological Distance Indicators
Gamma-Ray Bursts (GRBs), observed up to $z=9.4$, can be employed as standardized candles, extending the distance ladder beyond …
Maria Giovanna Dainotti, Via Nielson, Giuseppe Sarracino, Enrico Rinaldi, Shigehiro Nagataki, Salvatore Capozziello, Oleg Y. Gnedin, Giada Bargiacchi
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On the Evolution of the Hubble Constant with the SNe Ia Pantheon Sample and Baryon Acoustic Oscillations: A Feasibility Study for GRB-Cosmology in 2030
The difference from 4 to 6 $σ$ in the Hubble constant (H0 ) between the values observed with the local (Cepheids and Supernovae Ia, SNe …
Maria Giovanna Dainotti, Biagio De Simone, Tiziano Schiavone, Giovanni Montani, Enrico Rinaldi, Gaetano Lambiase, Malgorzata Bogdan, Sahil Ugale
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On the Hubble Constant Tension in the SNe Ia Pantheon Sample
The Hubble constant ($H_0$) tension between Type Ia Supernovae (SNe Ia) and Planck measurements ranges from 4 to 6 $\sigma$. To investigate this tension, we estimate $H_0$ in the $\Lambda$CDM and $w_0w_a$CDM models by dividing the Pantheon sample, the largest compilation of SNe Ia, into 3, 4, 20 and 40 bins.
Maria Giovanna Dainotti, Biagio De Simone, Tiziano Schiavone, Giovanni Montani, Enrico Rinaldi, Gaetano Lambiase
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On the Hubble Constant Tension in the SNe Ia Pantheon Sample