Climatic and biogeochemical effects of a galactic gamma ray burst

@article{Melott2005ClimaticAB,
  title={Climatic and biogeochemical effects of a galactic gamma ray burst},
  author={Adrian L. Melott and Brian C. Thomas and Daniel P. Hogan and Larissa M. Ejzak and C. H. Jackman},
  journal={Geophysical Research Letters},
  year={2005},
  volume={32},
  pages={4808}
}
[1] It is likely that one or more gamma ray bursts within our galaxy have strongly irradiated the Earth in the last Gy. This produces significant atmospheric ionization and dissociation, resulting in ozone depletion and DNA-damaging ultraviolet solar flux reaching the surface for up to a decade. Here we show the first detailed computation of two other significant effects. Visible opacity of NO2 is sufficient to reduce solar energy at the surface up to a few percent, with the greatest effect at… Expand

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