Outline
v Introduction:
The Soft X-Ray Band with Chandra and XMM-Newton
v Measurements in Collisional Plasmas (stars, normal galaxies, clusters)
Abundances
Temperature Structure
Beyond the Coronal Approximation
v Transitions among excited levels (density and UV diagnostics)
v Neighboring ion effects
Assessment of Fe-L Atomic Data
L-shells of Other Elements
v Measurements in Photoionized Plasmas (active galaxies, x-ray binaries)
Wavelengths (inner-shell phenomena)
Column Densities and Abundances
Atomic Data Status and Supporting Lab. Measurements
v Conclusions
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