The past, present and future supernova threat to Earth’s biosphere

@article{Beech2011ThePP,
  title={The past, present and future supernova threat to Earth’s biosphere},
  author={Martin Beech},
  journal={Astrophysics and Space Science},
  year={2011},
  volume={336},
  pages={287-302}
}
  • M. Beech
  • Published 6 October 2011
  • Physics
  • Astrophysics and Space Science
A brief review of the threat posed to Earth’s biosphere via near-by supernova detonations is presented. The expected radiation dosage, cosmic ray flux and expanding blast wave collision effects are considered, and it is argued that a typical supernova must be closer than ∼10-pc before any appreciable and potentially harmful atmosphere/biosphere effects are likely to occur. In contrast, the critical distance for Gamma-ray bursts is of order 1-kpc. In spite of the high energy effects potentially… 
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