A PHOTOMETRIC REDSHIFT OF<i>z</i>∼ 9.4 FOR GRB 090429B
A PHOTOMETRIC REDSHIFT OF<i>z</i>∼ 9.4 FOR GRB 090429B
Gamma-ray bursts (GRBs) serve as powerful probes of the early Universe, with their luminous afterglows revealing the locations and physical properties of star forming galaxies at the highest redshifts, and potentially locating first generation (Population III) stars. Since GRB afterglows have intrinsically very simple spectra, they allow robust redshifts from …