Abstract
Gamma-ray bursts are powerful astronomical transient events emitting large energy in γ-rays within a short period of time. Their emission dominates in the keV–MeV range. High luminosity with values up to 1054 erg s−1 and huge isotropic energy release in the prompt emission phase can make gamma-ray bursts (GRBs) detectable up to a high redshift, z ∼ 9.4. If emission from GRBs can be standardized, like Supernovae (SNe) Type Ia and which have been observed only up to a redshift of z < 2, they have the potential to be used as cosmological probes and help us to understand the nature of dark-energy when the universe was much younger than today. With GRBs as standard candles, we can extend our understanding of the universe’s mysterious expansion over cosmic time...
Ph.D. (Physics)