UPDATED ATOMIC DATA AND CALCULATIONS FOR X-RAY SPECTROSCOPY
Adam FosterSmithsonian Astrophysical Observatory, Cambridge, MA 02144, USAL. JiSmithsonian Astrophysical Observatory, Cambridge, MA 02144, USARandall K. SmithSmithsonian Astrophysical Observatory, Cambridge, MA 02144, USAN. S. BrickhouseSmithsonian Astrophysical Observatory, Cambridge, MA 02144, USA
2012en
ABI
Abstract
We describe the latest release of AtomDB, version 2.0.2, a database of atomic data and a plasma modeling code with a focus on X-ray astronomy. This release includes several major updates to the fundamental atomic structure and process data held within AtomDB, incorporating new ionization balance data, state-selective recombination data, and updated collisional excitation data for many ions, including the iron L-shell ions from Fe$^{+16}$ to Fe$^{+23}$ and all of the hydrogen- and helium-like sequences. We also describe some of the effects that these changes have on calculated emission and diagnostic line ratios, such as changes in the temperature implied by the He-like G-ratios of up to a factor of 2.
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Cited by 30 references