Gamma-ray burst prompt correlations: selection and instrumental effects

Understand

The prompt emission mechanism of gamma-ray bursts (GRB) even after several decades remains a mystery.

• However, it is believed that correlations between observable GRB properties given their huge luminosity/radiated energy and redshift distribution extending up to at least $z \approx 9$, are promising possible cosmological tools.
• They also may help to discriminate among the most plausible theoretical models.
• Nowadays, the objective is to make GRBs standard candles, similar to supernovae (SNe) Ia, through well-established and robust correlations.