Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Letter
  • Published:

22Na, Ne–E, extinct radioactive anomalies and unsupported 40Ar

Nature volume 257, pages 36–37 (1975)Cite this article

Abstract

A NEW picture1 of the origin of the known extinct radioactivities (129I and 244Pu) holds that these radioactive species were precipitated in grains forming in the rapidly cooling ejecta of explosive nucleosynthesis, and that their decay occurred in interstellar grains rather than in the meteorites. If so, our interpretation of extinct radioactivities is enlarged. Their detectability is no longer related to the usual criterion that they live long enough for the meteorites to form, but rather that they live long enough for grains to form in the expanding envelope.

This is a preview of subscription content, access via your institution

Access options

Buy this article

  • Purchase on Springer Link
  • Instant access to full article PDF
Buy now

Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others

References

  1. Clayton, D. D., Astrophys. J., 199, 765 (1975).

    Article  ADS  CAS  Google Scholar 

  2. Geisel, S. L., Kleinmann, D. E., and Low, F. J., Astrophys. J. Lett., 161, L101 (1970).

    Article  ADS  Google Scholar 

  3. Clayton, D. D., Astrophys. J., 198, 151 (1975).

    Article  ADS  CAS  Google Scholar 

  4. Clayton, D. D., and Hoyle, F., Astrophys. J. Lett., 187, L101 (1974).

    Article  ADS  CAS  Google Scholar 

  5. Black, D. C., Geochim. cosmochim. Acta, 36, 377 (1972).

    Article  ADS  CAS  Google Scholar 

  6. Howard, W. M., Arnett, W. D., and Clayton, D. D., Astrophys. J., 165, 495 (1971).

    Article  ADS  CAS  Google Scholar 

  7. Arnould, M., and Beelen, W., Astr. Astrophys., 33, 215 (1974).

    ADS  CAS  Google Scholar 

  8. Woosley, S. E., Arnett, W. D., and Clayton, D. D., Astrophys. J. Suppl., 26, 231 (1973).

    Article  ADS  CAS  Google Scholar 

  9. Heymann, D., and Yaniv, A., Proc. Apollo 11 Lunar Sci. Conf. (edit. by Levinson, A. A.), 2, 1261 (Pergamon, New York, 1970).

    Google Scholar 

  10. Howard, W. M., Arnett, W. D., Clayton, D. D., and Woosley, S. E., Phys. Rev. Lett., 27, 1607 (1971).

    Article  ADS  CAS  Google Scholar 

  11. Hainebach, K. L., Clayton, D. D., Arnett, W. D., and Woosley, S. E., Astrophys. J., 193, 157 (1974).

    Article  ADS  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Space Physics and Astronomy, Rice University, Houston, Texas, 77001

    DONALD D. CLAYTON

Authors
  1. DONALD D. CLAYTON
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

CLAYTON, D. 22Na, Ne–E, extinct radioactive anomalies and unsupported 40Ar. Nature 257, 36–37 (1975). https://doi.org/10.1038/257036b0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/257036b0

This article is cited by

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Search

Advanced search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing