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Tests cosmic models using gamma-ray bursts, suggesting calibration improvements with implications for cosmology.
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 ΛCDM model, but far from being competitive with those obtained by other well-established cosmic probes.
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Marco Muccino (2026) studied this question.
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