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Diagnosing Solar Plasmas From EUV and X-Ray Emission Lines

Published online by Cambridge University Press:  19 July 2016

Bhola N. Dwivedi*
Affiliation:
Department of Applied Physics, Institute of Technology Banaras Hindu University, Varanasi-221005, India

Abstract

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The electron density and temperature measurement of solar plasmas from EUV and X-ray emission lines have been briefly discussed. Diagnostic EUV line ratios from MgVI ion and X-ray line ratios from MgVIII and SiX ions have been presented. A brief account of the general methodology for diagnostics of inhomogeneous structures has also been given.

Type
VIII. Solar Flares
Copyright
Copyright © Kluwer 1990 

References

Almleaky, Y.M., Brown, J.C. and Sweet, P.A. (1989) ‘Density diagnostics and inhomogeneous plasmas I-Isothermal plasmas,’ Astron. Astrophys., In press.Google Scholar
Brown, J.C., Dwivedi, B.N., Almleaky, Y.M. and Sweet, P.A. (1989) ‘Density diagnostics and inhomogeneous plasmas II - Non-isothermal plasmas’, Paper in preparation.Google Scholar
Craig, I.J.D. and Brown, J.C. (1976) ‘Fundamental limitations of X-ray spectra as diagnostics of plasma temperature structure’, Astron. Astrophys. 49, 239250.Google Scholar
Dere, K.P. and Mason, H.E. (1981) ‘Spectroscopic diagnostics of the active region: Transition Zone and Corona’, in Orrall, F.Q. (ed.), Solar Active Region, Colo. Univ. Press, pp. 129164.Google Scholar
Dwivedi, B.N. (1989) ‘On the electron density in sunspot plumes’, Solar Phys. Lett., In press.Google Scholar
Dwivedi, B.N. (1988a) ‘Diagnostics of solar plasma using emission lines’, Kodaikanal Obs. Bull. Ser. 9, 99110.Google Scholar
Dwivedi, B.N. (1988b) ‘Electron density from MgVIII emission lines’, Solar Phys. Lett. 116, 405408.Google Scholar
Dwivedi, B.N. and Raju, P.K. (1988) ‘Density diagnostics of solar emission lines from nitrogen-like ions’, Adv. Space Res. 8, 11(179)11(183).CrossRefGoogle Scholar
Dwivedi, B.N. and Raju, P.K. (1980) ‘Density dependence of solar emission lines of boron-like ions’, Solar Phys. 68, 111123.CrossRefGoogle Scholar
Doschek, G.A. (1985) ‘Diagnostics of solar and astrophysical plasmas dependent on autoionization’, in Temkin, A. (ed.), Autoionization, N.Y. Plenum Publ. Corp., pp. 171256.Google Scholar
Gabriel, A.H. and Jordan, C. (1972) ‘Interpretation of spectral intensities from laboratory and astrophysical plasmas’, in McDaniel, E.W. and McDowel, M.R.C.(eds.), Case Studies in Atomic Collision Physics II, North Holland, pp. 210291.Google Scholar
Raju, P.K. and Dwivedi, B.N. (1978) ‘Density dependence of solar emission lines of oxygen-like ions’, Solar Phys. 60, 269277.Google Scholar
Raju, P.K. and Dwivedi, B.N. (1979) ‘Density dependence of solar emission lines of carbon-like ions’, Pramana, 13, 319328.CrossRefGoogle Scholar