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Spectroscopic Diagnostics for Ions Observed in Solar and Cosmic Plasmas

Published online by Cambridge University Press:  12 April 2016

Helen E Mason
Helen E Mason*
Affiliation:
Department of Applied Mathematics and Theoretical Physics, Silver Street, Cambridge, CB3 9EW, U. K.

Abstract

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The X-ray wavelength region (1-200Å) is rich in spectral lines from highly ionised systems. Spectra from the solar atmosphere have been studied extensively with various instruments covering different wavelength regions. In this paper, we discuss the solar spectral line emission with particular reference to iron ions and helium like ions observed during solar flares. The atomic processes involved in the calculation of theoretical intensities for low density plasmas are outlined together with the diagnostic properties of the emission lines. Comparisons are made with available cosmic X-ray spectra and predicted spectra for future projects, such as AXAF.

Type
1. X-rays from a Hot Plasma
Information
International Astronomical Union Colloquium , Volume 115: High Resolution X-ray Spectroscopy of Cosmic Plasmas , 1990 , pp. 11 - 20
Copyright
Copyright © Cambridge University Press 1990

References

Bhatia, A. K., Fawcett, B. C., Lemen, J. R., Mason, H. E., and Phillips, K. J. H., 1989, M.N.R.A.S., submitted.Google Scholar
Brinkman, A.C., VanRooijen, J. J., Bleeker, J. A. M., Dijkstru, J. H., Heise, J., deKorte, P. A. J., Mewe, R., and Paerels, F., 1987, Astro. Lett, and Commun., 26, 73.Google Scholar
Brown, W. A., Bruner, M. E., Acton, L. W., and Mason, H. E., 1986, Ap. J., 301, 981.Google Scholar
Burgess, A., Mason, H. E., and Tully, J. A., 1988, J de Phys., 49, C1–107.Google Scholar
Burgess, A., Mason, H. E., and Tully, J. A., 1989, Astr. Ap., in press.Google Scholar
Dere, K. P., and Mason, H. E., 1981, in Solar Active Regions, ed Orrall, F. (Boulder:Colorado Associated University Press) chap. 6.Google Scholar
Doschek, G. A., 1985, Autoionisation, ed Tenkin, A., chap. 6.Google Scholar
Doschek, G. A., Kreplin, R. W., and Feldman, U., 1979, Ap. J. Lett., 233, 457.Google Scholar
Gabriel, A. H., and Mason, H. E., 1982, in Applied Atomic Collision Physics, Vol. 1, ed. Massey, H. S. W., McDaniel, E. W., and Bederson, B. (New York:Academic), p. 345.Google Scholar
Mason, H. E., 1988, J. de Phys., 49, Cl–13.Google Scholar
Mason, H. E., Bhatia, A. K., Kastner, S. O., Neupert, W. M., and Swartz, M., 1984, Solar Phys., 92, 199.CrossRefGoogle Scholar
Mason, H. E., Doschek, G. A., Feldman, U., and Bhatia, A. K., 1979, Astr. Ap., 73, 74.Google Scholar
Kastner, S. O., Neupert, W. M., Swartz, M., 1974, Ap. J., 191, 26.Google Scholar
McKenzie, D. L., Broussard, R. M., Landecker, P. B., Rugge, H. R., Young, R. M., Doschek, G. A., and Feldman, U., 1980, Ap. J., 238, L43.Google Scholar
Neupert, W. M., Swartz, M., and Kastner, S. O., 1973, Solar Phys., 31, 171.Google Scholar
Phillips, K. J. H., Leibacher, J. W., Wolfson, C. J., Parkinson, J. H., Fawcett, B.C., Kent, B. J., Mason, H. E., Acton, L. W., Culhane, J. L., and Gabriel, A. H., 1982, Ap. J., 256, 774.Google Scholar
Winkler, P. F., Canizares, C. R., Clark, G. W., Markert, T. H., Kalata, K., and Schnopper, H. W., 1981, Ap. J. Lett., 246, L27.Google Scholar
Wolfson, C. J., Doyle, J. G., Leibacher, J. W., and Phillips, K. J. H., 1983, Ap. J., 269, 319.Google Scholar