Effect of nearby supernova explosions on atmospheric ozone

Details Effect of nearby supernova explosions on atmospheric ozone Effect of nearby supernova explosions on atmospheric ozone

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976natur.263..398w&link_type=abstract

Nature, vol. 263, Sept. 30, 1976, p. 398-400.

Mathematics

Probability

13

Ozone Depletion, Ozonosphere, Radiation Effects, Stratosphere, Supernovae, Atmospheric Chemistry, Atmospheric Models, Cosmic Rays, Gamma Rays, Long Term Effects

Scientific paper

An investigation has been conducted of the probable effects of a nearby supernova event on the ozone layer of the earth. It is found that the ozone depletion, although smaller than that estimated by Ruderman (1974), is still significant, and could, as a result of cosmic rays, extend over periods of time from 1000 to 10,000 years. However, the probability of the occurrence of such an event within the past 100 million years appears to be low. The calculated ozone depletion seems to be the major effect of a supernova on a earth-like planet at a distance in the range from 5 to 10 pc.

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