Acta Polytechnica (Jan 2011)

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

  • A. Mészáros,
  • J. Řípa,
  • F. Ryde

Journal volume & issue
Vol. 51, no. 6

Abstract

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The cosmological relationships between observed and emitted quantities are 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.

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