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astro-ph2004
Terrestrial Ozone Depletion Due to a Milky Way Gamma-Ray Burst
Brian C. Thomas, Charles H. Jackman, Adrian L. Melott +5
Based on cosmological rates, it is probable that at least once in the last Gy the Earth has been irradiated by a gamma-ray burst in our Galaxy from within 2 kpc. Using a two-dimens…
astro-ph2003
Did a gamma-ray burst initiate the late Ordovician mass extinction?
A. Melott, B. Lieberman, C. Laird +6
Gamma-ray bursts (hereafter GRB) produce a flux of radiation detectable across the observable Universe, and at least some of them are associated with galaxies. A GRB within our own…
astro-ph2002
Ozone Depletion from Nearby Supernovae
Neil Gehrels, Claude M. Laird, Charles H. Jackman +3
Estimates made in the 1970's indicated that a supernova occurring within tens of parsecs of Earth could have significant effects on the ozone layer. Since that time, improved tools…