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The relative intensities of nitrogen lines in the semi-coronal regime

Published online by Cambridge University Press:  13 March 2009

W. A. Cilliers ,
J. D. Hey  and
J. P. S. Rash
W. A. Cilliers
Affiliation:
Department of Physics, University of Cape Town
J. D. Hey
Affiliation:
Department of Physics, University of Cape Town
J. P. S. Rash
Affiliation:
Department of Physics, University of Cape Town
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Abstract

At plasma densities lower than about 1018 cm-3, strictly speaking, the LTE model cannot be used when the electron temperature is calculated from measured spectral line intensity ratios. In this work a number of nitrogen spectral lines were studied at an electron density of about 1016 cm-3, and the results are discussed with reference to the LTE and semi-coronal models. A method is suggested for analyzing line intensity ratio data from plasmas in the semi-coronal regime.

Type
Research Article
Information
Journal of Plasma Physics , Volume 9 , Issue 1 , February 1973 , pp. 77 - 88
Copyright
Copyright © Cambridge University Press 1973

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References

REFERENCES

Bates, D. R. & Damgaard, A. 1949 Phil. Trans. A 242, 101.Google Scholar
Bates, D. R., Kingston, A. E. & McWhirter, R. W. P. 1962 Proc. Roy. Soc. A 267, 297.Google Scholar
Burgess, A. 1964 Astrophys. J. 139, 776.CrossRefGoogle Scholar
Burgess, A. 1965 Astrophys. J. 141, 1588.CrossRefGoogle Scholar
Cox, D. P. & Tucker, W. H. 1969 Astrophys. J. 157, 1157.CrossRefGoogle Scholar
Griem, H. R. 1963 Phys. Rev. 131, 1170.CrossRefGoogle Scholar
Griem, H. R. 1964 Plasma Spectroscopy. McGraw-Hill.Google Scholar
Huddlestone, R. H. & Leonard, S. L. 1965 Plasma Diagnostic Techniques. Academic.Google Scholar
Jordan, C. 1969 Mon. Not. Roy. Astron. Soc. 142, 501.CrossRefGoogle Scholar
Kulander, J. L. 1965 J. Quant. Spectrosc. Radiative Transfer, 5, 253.CrossRefGoogle Scholar
Seaton, M. J. 1964 Planet. Space Sci. 12, 55.CrossRefGoogle Scholar
Spitzer, L. 1962 Physics of Fully Ionized Gases. Interscience.Google Scholar
Wiese, W. L., Smith, M. W. & Glennon, B. M. 1966 Atomic Transition Probabilities, vol. 1. NSRDS, National Bureau of Standards.CrossRefGoogle Scholar
Wilson, R. 1962 J. Quant. Spectrosc. Radiative Transfer, 2, 477.CrossRefGoogle Scholar