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Local interstellar medium

Nature volume 254, pages 202–203 (1975)Cite this article

Abstract

NEUTRAL interstellar hydrogen can be prevented from penetrating freely into the heliosphere of solar plasma, because it is partially coupled to the subsonic flow of interstellar plasma. Results from modelling the backscattering of the diffuse Lyman-α radiation are therefore unreliable. The interstellar density of H+ is probably 0.02 cm−3 or less, and the density of neutral hydrogen greater than 0.2 cm−3.

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References

  1. Dalgarno, A., and McCray, R. A., A. Rev. Astr. Astrophys., 10, 375 (1972).

    Article  ADS  CAS  Google Scholar 

  2. Rose, W. K., and Wentzel, D. G., Astrophys. J., 181, 115 (1973).

    Article  ADS  CAS  Google Scholar 

  3. Savage, B. D., and Jenkins, E. B., Astrophys. J., 172, 491 (1972).

    Article  ADS  CAS  Google Scholar 

  4. Macchetto, F., and Panagia, N., Astr. Astrophys., 28, 313 (1973).

    ADS  CAS  Google Scholar 

  5. Wallis, M. K., Mon. Not. R. astr. Soc., 167, 103 (1974).

    Article  ADS  CAS  Google Scholar 

  6. Fahr, H. J., Space Sci. Revs, 15, 483 (1974).

    Article  ADS  CAS  Google Scholar 

  7. Thomas, G. E., in Exploration of the outer solar system, paper 73–547, (Am. geophys. Union, Denver, 1973).

    Google Scholar 

  8. Axford, W. I., Solar Wind, SP-308, 609 NASA (1972).

  9. Baranov, V. B., and Krasnobayev, K. V., Gidromekhanika, 7, 5 (Moscow 1973).

    Google Scholar 

  10. Wallis, M. K., Astrophys. Space. Sci., 20, 3 (1973).

    Article  ADS  CAS  Google Scholar 

  11. Brook, J. W., and Hamel, B. B., Phys. Fluids, 15, 1898 (1972).

    Article  ADS  Google Scholar 

  12. Spreiter, J. R., Summers, A. L., and Alksne, A. Y., Planet. Space Sci., 14, 223 (1966).

    Article  ADS  Google Scholar 

  13. Hayes, W. D., and Probstein, R. F., Hypersonic flow theory I: Inviscid Flows (Academic, 1966).

    MATH  Google Scholar 

  14. Patterson, T. N. L., Johnson, F. S., and Hanson, W. B., Planet. Space Sci., 11, 767 (1963).

    Article  ADS  Google Scholar 

Download references

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Authors and Affiliations

  1. Mathematical Institute, Oxford, UK

    MAX K. WALLIS

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  1. MAX K. WALLIS
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WALLIS, M. Local interstellar medium. Nature 254, 202–203 (1975). https://doi.org/10.1038/254202a0

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