Astrophysical and Astrobiological Implications of Gamma-Ray Burst Properties

  title={Astrophysical and Astrobiological Implications of Gamma-Ray Burst Properties},
  author={John Michael Scalo and J. Craig Wheeler},
  journal={The Astrophysical Journal},
Combining results from Schmidt for the local cosmic rate and mean peak luminosity of γ-ray bursts (GRBs) with results on the history of the cosmic star formation rate (SFR), we provide estimates for the local GRB rate per unit blue luminosity in galaxies. For a moderate increase in SFR with redshift, we find a GRB rate per unit B luminosity of 2.4 × 10-17 hLyr-1. The corresponding mean γ-ray luminosity density in the Milky Way is 1.6 × 1029 ergs s-1 pc-2, and the total rate is 5.5 × 10-7 h yr-1… Expand
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