Testing the ΛCDM model with gamma-ray bursts using a newly calibrated Combo correlation

2026

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DOI 10.1142/s0217751x26460036
Data confidence 70 medium
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Abstract

Gamma-Ray Burst (GRB) correlations, once properly calibrated, are promising cosmic tools able to frame cosmological models. Here, the Combo correlation of GRBs is calibrated with a new method that combines type Ia supernovae (SNe Ia) and the Bézier-interpolated Hubble rate. The extracted bounds agree with the [Formula: see text]CDM model, but far from being competitive with those obtained by other well-established cosmic probes.