• X-Ray Astrophysics: Observations of x-ray sources using the airborne telescopes
  XMM-Newton and Chandra.  

• Celestial X-Ray Sources: Stellar coronae, supernova remnants (SNR),
  and active galactic nuclei (AGN).  

• X-Ray Spectroscopy and Plasma Diagnostics: High-precision measurements in space. 

• Laboratory Astrophysics: Experimental and theoretical studies of the fundamental physical processes behind cosmic x-ray emission.  

• Atomic Computations: Atomic structure and atomic interactions in highly-ionized plasma.  

• Atomic Theory: Quantum interference between radiative and dielectronic recombination.

• The inverse first ionization potential (FIP) effect in stellar coronae.
• Who's afraid of Fe-L ? Capella as a reassuring case for the soundness of the Fe L-shell data.
• The oxygen ejecta blob in the northern part of SNR N132D.
• Unambiguous non-equilibrium-ionization (NEI) in recently shocked gas in SNR N103B.
• Low-ionization x-ray absorption in AGN, the example of the quasar IRAS 13349-2348 .
• The Fe-M unresolved transition array (UTA).
• Inner-shell Ka absorption in AGN, the example of NGC 3783.
• Measuring absorption column-densities from emission spectra.
• The x-ray ionization cone of NGC 1068: pure AGN-photoionized plasma.

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