Astrophysics and Space Science

, Volume 196, Issue 1, pp 117–123 | Cite as

Supernovae as sources of interstellar diamonds

  • Joseph A. NuthIII
  • John E. AllenJr.


Small hydrocarbon grains in the vicinity of a supernova could be annealed by the absorption of several far-ultraviolet photons to produce the tiny diamonds found in meteorites. These freshly-synthesized diamond grains would be bombarded by the heavy ions and neutrals in the supernovae outflow and would thereby acquire the distinctive noble-gas isotopic signature by which they were first isolated. Only diamonds formed relatively close to supernovae would acquire such a signature, since grains formed farther out would be subjected to a much diluted and less energetic plasma environment.


Hydrocarbon Isotopic Signature Plasma Environment Small Hydrocarbon Energetic Plasma 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • Joseph A. NuthIII
    • 1
  • John E. AllenJr.
    • 1
  1. 1.Astrochemistry BranchNASA/Goddard Space Flight CenterGreenbeltUSA

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