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Density measurement from A1 IX λ385.03/λ392.42 line ratio

  • Solar Physics Letters
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Abstract

A1 IX EUV line ratio λ385.03/λ392.42 has been found to be density sensitive. Using this, an electron density of 3.7 × 108 cm−9 is found in the quiet, Sun off-limb from Skylab observation reported by Vernazza and Reeves (1978).

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References

  • Arnaud, M. and Rothenflug, R.: 1985, Astron. Astrophys. Suppl. 60, 425.

    Google Scholar 

  • Dwivedi, B.N. and Raju, P.K.: 1980, Solar Phys. 68, 111.

    Google Scholar 

  • Dwivedi, B.N. and Gupta, A.K.: 1990, Adv. Space Res., in press.

  • Ewlert, G. and Raju, P.K.: 1975, Astrophys. Space Sci. 38, 369.

    Google Scholar 

  • Elzner, L.R.: 1976, Astron. Astrophys. 47, 9.

    Google Scholar 

  • Flower, D.R. and Nussbaumer, H.: 1975 a,b, Astron. Astrophys. 45, 145 and 349.

    Google Scholar 

  • Noyes, R.W., Raymond, J.C., Doyle, J.G. and Kingston, A.E.: 1985, Astrophys. J. 297, 805.

    Google Scholar 

  • Vernazza, J.E. and Reeves, E.M.: 1978, Astrophys. J. Suppl. 37, 485.

    Google Scholar 

  • Wiese, W.L., Smith, M.W. and Miles, B.M.: 1969, Atomic Transition Probabilities (Washington: NBS Vol. II)

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Authors and Affiliations

  1. Department of Applied Physics, Institute of Technology Banaras Hindu University, 221 005, Varanasi, India

    B. N. Dwivedi & A. K. Gupta

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  1. B. N. Dwivedi
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  2. A. K. Gupta
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Dwivedi, B.N., Gupta, A.K. Density measurement from A1 IX λ385.03/λ392.42 line ratio. Sol Phys 135, 415–417 (1991). https://doi.org/10.1007/BF00147511

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