Did a Gamma-Ray Burst Initiate the Late Ordovician Mass Extinction

  title={Did a Gamma-Ray Burst Initiate the Late Ordovician Mass Extinction},
  author={A. Melott and B. Lieberman and C. Laird and L. Martin and M. Medvedev and B. Thomas and J. Cannizzo and N. Gehrels and C. Jackman},
  • A. Melott, B. Lieberman, +6 authors C. Jackman
  • Published 2004
  • Environmental Science, Physics, Biology
  • Gamma-ray bursts (GRBs) produce a flux of radiation detectable across the observable Universe. A GRB within our own galaxy could do considerable damage to the Earth's biosphere; rate estimates suggest that a dangerously near GRB should occur on average two or more times per billion years. At least five times in the history of life, the Earth has experienced mass extinctions that eliminated a large percentage of the biota. Many possible causes have been documented, and GRBs may also have… CONTINUE READING
    87 Citations
    Possible role of gamma ray bursts on life extinction in the universe.
    • 42
    • PDF
    Gamma-ray bursts as a threat to life on Earth
    • 14
    • PDF
    Mass extinctions and supernova explosions
    • 2
    • PDF
    Astrophysical ionizing radiation and Earth: a brief review and census of intermittent intense sources.
    • 76
    • PDF
    Did gamma ray burst induce Cambrian explosion?
    • 1
    • PDF
    Nitrate deposition following an astrophysical ionizing radiation event
    • 6
    • PDF


    Terrestrial implications of cosmological gamma-ray burst models
    • 79
    • PDF
    Gamma-Ray bursts: accumulating afterglow implications, progenitor clues, and prospects.
    • 86
    • PDF
    Astrophysical and Astrobiological Implications of Gamma-Ray Burst Properties
    • 95
    • Highly Influential
    • PDF
    High‐Energy Cosmic Rays from Galactic and Extragalactic Gamma‐Ray Bursts
    • 1
    • PDF