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Meteoritic anomalies, rapid neutron capture, and gamma-rays

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons101167

Ott,  U.
Cosmochemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Zitation

Ott, U. (2002). Meteoritic anomalies, rapid neutron capture, and gamma-rays. New Astronomy Reviews, 46(8-10), 513-518.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0014-90DA-B
Zusammenfassung
Unlike for the s-process, so far no isotope abundance anomalies of the type expected from standard r-process nucleosynthesis have been detected in meteoritic presolar grains. The possibility is explored whether observed patterns can be related to some of the recently inferred complexity of r- process abundances. Relative strengths of gamma-ray lines observed in a future supernova, such as the strength of the line expected from the decay of Os-194 relative to those from Cs-137 or Sb-125, may be used as indicators for which type of rapid neutron capture is occurring. Also useful, if observations will be possible within a few months after the explosion, will be the search for gamma rays from nuclei previously not considered because of their relative short half- lives, such as Ce-141 and Hg-203. (C) 2002 Elsevier Science BY. All rights reserved.