NASA NTRS · 19850018240
Interstellar Al-26 and excess Mg-26
Abstract
Evidence of a possible supernova explosion that occured very near the Earth is presented by the presence of radioactive 26 Aluminum (26 Al). The time of the supernova explosion is placed at approximately 100,000 years ago and is partially supported by cosmic gamma ray measurements from both HEAO 3 and the Solar Maximum Mission.
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Clayton, D. D.. 1985-01-01. Interstellar Al-26 and excess Mg-26. https://ntrs.nasa.gov/citations/19850018240
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