Research in Astrophysics -- High-resolution X-ray spectroscopy

• Solar and stellar high-resolution X-ray spectra. Plasma diagnostics with CHIANTI
  Del Zanna et al. (2002), X-Ray Astronomy 2000: PASP Conf. Ser., R. Giacconi, L. Stella and S. Serio eds.
  

• CHIANTI: application to X-ray high resolution spectroscopy
  Del Zanna G., 2002, proc. workshop on High resolution X-ray spectroscopy with XMM-Newton and Chandra, MSSL, 24 - 25 October 2002
  

• Chandra spectra
  Here are some old comparisons between atomic data and Chandra spectra.

• Spectroscopic diagnostics of stellar transition regions and coronae in the XUV: AU Mic in quiescence
  Del Zanna, G., Landini, M., & Mason, H. E. 2002, A&A 385, 968-985
  
  This is a review paper on spectroscopic diagnostic techniques that can be applied to XUV observations of active stars, including the Sun.
  In particular, I discuss methods for the determination of electron densities, emission measures and the chemical composition of the stellar transition regions and coronae.
  Severe limitations to some of the commonly used methods and atomic data are highlighted.
  New results, significantly different from those of the prvious literature are found.
  In particular, in terms of transition region densities, where values one order of magnitude lower are found.
  For the first time, it shown that the anomalous behavior of the ions of the Li- and Na-sequence is also present for the stars.
  

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