Article | Published:

UV radiation from the young Sun and oxygen and ozone levels in the prebiological palaeoatmosphere

Nature volume 296, pages 816820 (29 April 1982) | Download Citation

Subjects

Abstract

UV measurements of young T-Tauri stars, resembling the Sun at an age of a few million years, have recently been made with the International Ultraviolet Explorer. They indicate that young stars emit up to 104 times more UV than the present Sun. The implications for the origin and evolution of O2 and O3 in the prebiological palaeoatmosphere are presented here. The results of photochemical calculations indicate that the O2 surface mixing ratio was a factor 104–106 times greater than the standard value of 10−15. This new value reconciles the simultaneous existence of oxidized iron and reduced uranium.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    & Science 198, 1035 (1977).

  2. 2.

    & Science 177, 52 (1972).

  3. 3.

    Science 269, 224 (1977).

  4. 4.

    , & Nature 277, 640 (1979).

  5. 5.

    & Nature 270, 589 (1977).

  6. 6.

    & J. atmos. Sci. 22, 225 (1965).

  7. 7.

    & J. atmos. Sci. 29, 803 (1972).

  8. 8.

    & J. atmos. Sci. 34, 720 (1977).

  9. 9.

    , & Icarus 39, 295 (1979).

  10. 10.

    & J. geophys. Res. 85, 3255 (1980).

  11. 11.

    , & Origins of Life 10, 199 (1980).

  12. 12.

    Origins of Life 10, 313 (1980).

  13. 13.

    , , & Astr. Astrophys., 90, 184 (1980).

  14. 14.

    & Astr. Astrophys. 75, 164 (1979).

  15. 15.

    , , , & Nature 290, 34 (1981).

  16. 16.

    , , & Astr. Astrophys. 73, L4 (1979).

  17. 17.

    , & The First Year of IUE (ed. Willis, A. J.) 109 (University College, London, 1979).

  18. 18.

    & Astrophys. J. Lett. 239, L115 (1980); in The Universe at Ultraviolet Wavelengths: The First Two Years of IUE (ed. Chapman, R. D.) 185 (NASA Conf. Publ. 2171, 1981); in Proc. 2nd Cambridge Workshop on Cool Stars, Stellar Systems and the Sun (ed. Giampapa, M. S.) SAO Spec. Rep., in the press).

  19. 19.

    & Astrophys. Suppl. 41, 743 (1979).

  20. 20.

    & in Proc. 2nd Cambridge Workshop on Cool Stars, Stellar Systems and the Sun (ed. Giampapa, M. S.) (SAO Spec. Rep., in the press).

  21. 21.

    Astrophys. J. 138, 832 (1963).

  22. 22.

    & Astrophys. J. 140, 1401 (1964).

  23. 23.

    Astrophys. J. 171, 565 (1972).

  24. 24.

    , , , & in Comets and the Origin of Life (ed. Ponnamperuma, C.) 161 (Reidel, Dordrecht, 1981).

  25. 25.

    , & Origins of Life 12 (in the press).

  26. 26.

    & Icarus 39, 310 (1979).

  27. 27.

    in Mesospheric Models and Related Experiments (ed. Fiocco, G.) 149 (Reidel, Dordrecht, 1971).

  28. 28.

    & J. geophys. Res. 86, 1147 (1981).

  29. 29.

    Icarus 38, 23 (1978).

  30. 30.

    in Comparative Planetology (ed. Ponnamperuma, C.) 165 (Academic, New York, 1978).

  31. 31.

    & Econ. Geol. 72, 1457 (1977).

  32. 32.

    Precamb. Res. 13, 1 (1980).

  33. 33.

    Nature 274, 657 (1978).

  34. 34.

    Chemical Kinetic and Photochemical Data for Use in Stratospheric Modelling JPL Publ. 81–3 (Jet Propulsion Laboratory, Pasadena, 1981).

Download references

Author information

Affiliations

  1. NASA, Goddard Institute for Space Studies, New York, New York 10025, USA

    • V. M. Canuto
  2. NASA, Langley Research Center, Hampton, Virginia 23665, USA

    • J. S. Levine
    •  & T. R. Augustsson
  3. C.S.C., NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA

    • C. L. Imhoff

Authors

  1. Search for V. M. Canuto in:

  2. Search for J. S. Levine in:

  3. Search for T. R. Augustsson in:

  4. Search for C. L. Imhoff in:

About this article

Publication history

Received

Accepted

Published

DOI

https://doi.org/10.1038/296816a0

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.