On the line ratio diagnostics for NeV, MgV, SiVII and MgVII solar ions

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Abstract

We present NeVMgV and MgVIISiVII theoretical line intensity ratios as a function of electron density and temperature for physical conditions within the solar chromosphere-corona transition region. The electron pressure within the emission regions has been assumed to be a constant parameter. These line intensity ratios in addition could be useful for estimating relative element abundances NeMg and MgSi. Line intensities of these ions have been computed using a model solar atmosphere and these have been compared with the available observed values for the quiet -Sun conditions. The analysis suggests the need for observations at higher spectral resolution. The successful launch of the SOHO satellite recently should provide such spectra.

References (17)

  • K.M. Aggarwal

    J. Phys.

    (1983)
  • K.M. Aggarwal

    Ap. J. Suppl.

    (1984)
  • K.M. Aggarwal

    Ap. J. Suppl.

    (1986)
  • A.K. Bhatia et al.

    Astron. Astrophys.

    (1979)
  • B.N. Dwivedi

    Space Sci. Rev.

    (1994)
  • B. Edlen

    Physica Scripta

    (1982)
  • L.R. Elzner

    Astron. Astrophys.

    (1976)
  • A.H. Gabriel et al.
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