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The electron density in the direction of ζ Oph

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Abstract

It is shown that photoionization of vibrationally excited H2 and photodissociation of the H +2 ions produced thereby constitute a significant electron production route in high UV flux situations. A significant fraction of the electron density in the direction of ζ Oph (−15 km s−1 cloud) deduced from observations may be expected to arise in this way.

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References

  • Allen, C. W.: 1963,Astrophysical Quantities, Athlone Press, London.

    Google Scholar 

  • Bortolot, V., Shulman, S., and Thaddeus, P.: 1974, unpublished.

  • Bowers, M. T., Elleman, D. D., and King, J.: 1969,J. Chem. Phys. 50 4787.

    Google Scholar 

  • Cartwright, D. C. and Drapatz, S.: 1970,Astron. Astrophys. 4, 443.

    Google Scholar 

  • Cook, G. R. and Metzger, P. H.: 1964,J. Opt. Soc. Am. 54, 968.

    Google Scholar 

  • Dalgarno, A., Herbst, E., Novick, S., and Klemperer, W.: 1973,Astrophys. J. 183, L131.

    Google Scholar 

  • Dunn, G. H.: 1968, JILA Report No. 92.

  • Hollenbach, D. J., Werner, M. W., and Salpeter, E. E.: 1971,Astrophys. J. 163, 165.

    Google Scholar 

  • Leu, M. T., Biondi, M. A., and Johnson, R.: 1973,Phys. Rev. 8, 413.

    Google Scholar 

  • Morton, D. C.: 1965,Astrophys. J. 141, 73.

    Google Scholar 

  • Morton, D. C., Drake, J. F., Jenkins, E. B., Rogerson, J. B., Spitzer, L., and York, D. G.: 1973,Astrophys. J. 181, L103.

    Google Scholar 

  • Spitzer, L. and Tomasko, J. G.: 1968,Astrophys. J. 152, 971.

    Google Scholar 

  • Spitzer, L., Drake, J. F., Jenkins, E. B., Morton, D. C., Rogerson, J. B., and York, D. G.: 1973,Astrophys. J. 181, L116.

    Google Scholar 

  • Spitzer, L., Cochran, W. D., and Hirschfeld, A.: 1974, preprint.

  • Stecher, T. P. and Williams, D. A.: 1967,Astrophys. J. 149, L29.

    Google Scholar 

  • Stecher, T. P. and Williams, D. A.: 1972,Astrophys. J. 177, L141.

    Google Scholar 

  • Stecher, T. P. and Williams, D. A.: 1973,Monthly Notices Roy. Astron. Soc. 161, 305.

    Google Scholar 

  • Stecher, T. P. and Williams, D. A.: 1974a, ‘CH and CH+ in Interstellar Clouds’, to be submitted.

  • Stecher, T. P. and Williams, D. A.: 1974b, ‘Evaporation of Grain Mantles’, to be submitted.

  • White, R. E.: 1973,Astrophys. J. 183, 81.

    Google Scholar 

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Authors and Affiliations

  1. Goddard Space Flight Center, NASA, Greenbelt, Md., USA

    Theodore P. Stecher & David A. Williams

  2. Mathematics Department, U.M.I.S.T., Manchester, England

    Theodore P. Stecher & David A. Williams

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  1. Theodore P. Stecher
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  2. David A. Williams
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Stecher, T.P., Williams, D.A. The electron density in the direction of ζ Oph. Astrophys Space Sci 32, 211–213 (1975). https://doi.org/10.1007/BF00646227

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  • DOI: https://doi.org/10.1007/BF00646227

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