A Crazy Question: Can Apparently Brighter Gamma-ray Bursts Be Farther Away?

摘要

The cosmological relationships between observed and emitted quantities axe determined for gamma-ray bursts (GRBs). The relationship shows that apparently fainter bursts need not, in general, lie at larger redshifts.This is possible when the luminosities (or emitted energies) in a sample of bursts increase faster than the dimming of the observed values with redshift. Four different samples of long bursts suggest that this is what really happens.