Indications for Gamma Ray Burst in our Galaxy - 1 views
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johannessimon81 on 22 Jan 13Abstract: In the last 3000 yr, one significant and rapid increase in the concentration of 14C in tree rings was observed; it corresponds to a gamma-ray energy input of 7x10^24 erg at Earth within up to one year in AD 774/5 (Miyake et al. 2012).