The CHIANTI atomic database
Peter R. Young, Ken P. Dere, Enrico Landi, Giulio Del Zanna, Helen, Mason
TL;DR
The CHIANTI atomic database provides comprehensive atomic data crucial for modeling astrophysical plasma emissions, with continuous updates enhancing its utility for the scientific community since 1996.
Contribution
This paper summarizes the contents, data formats, and impact of the latest version of the CHIANTI database, highlighting its role in astrophysical plasma research.
Findings
Supported modeling of emissions from 246 ions and neutrals
Facilitated ionization fraction calculations for elements up to zinc
Demonstrated widespread impact on astrophysical plasma analysis
Abstract
The CHIANTI atomic database was first released in 1996 and has had a huge impact on the analysis and modeling of emissions from astrophysical plasmas. The database has continued to be updated, with version 8 released in 2015. Atomic data for modeling the emissivities of 246 ions and neutrals are contained in CHIANTI, together with data for deriving the ionization fractions of all elements up to zinc. The different types of atomic data are summarized here and their formats discussed. Statistics on the impact of CHIANTI to the astrophysical community are given and examples of the diverse range of applications are presented.
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