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X-Ray Line Transfer in Plasmas with Large Velocity Gradients

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Abstract

An astrophysically relevant experiment is compared to the output of a multidimensional radiation transfer code in which populations and radiation are self-consistently treated. Experimental Al Ly α spectra obtained with a very high-resolution spectrometer are presented as quantitative evidence of dot plasma non-planar expansion. Analysis of these spectra using the code is performed, in particular examining the effects of velocity gradients in directions other than that of the primary expansion. These calculations are found to be in good agreement with the experimental results. Usage of the Ly α doublet as a planarity diagnostic is discussed.

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Authors and Affiliations

  1. Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, UK

    F. M. Kerr, A. Gouveia, S. J. Rose & J. S. Wark

  2. Institute of Physics, Czech Academy of Sciences, 18211, Prague, Czech Republic

    O. Renner

  3. Lawrence Livermore National Laboratories, Livermore, CA, 94550, USA

    R. W. Lee, P. K. Patel & H. A. Scott

Authors
  1. F. M. Kerr
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  2. A. Gouveia
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  3. R. W. Lee
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  4. P. K. Patel
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  5. O. Renner
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  6. S. J. Rose
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  7. H. A. Scott
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  8. J. S. Wark
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Correspondence to F. M. Kerr.

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Kerr, F.M., Gouveia, A., Lee, R.W. et al. X-Ray Line Transfer in Plasmas with Large Velocity Gradients. Astrophys Space Sci 298, 171–176 (2005). https://doi.org/10.1007/s10509-005-3928-y

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  • DOI: https://doi.org/10.1007/s10509-005-3928-y

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