CHIANTI

An Atomic Database for Spectroscopic Diagnostics of Astrophysical Plasmas.

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Naval Research Laboratory (USA) - Rutherford Appleton Laboratory (UK) -
University of Cambridge (UK) - George Mason University (USA) - Universita' degli Studi di Firenze (Italy)

CHIANTI consists of a critically evaluated set of up-to-date atomic data, together with user-friendly programs written in Interactive Data Language (IDL), to analyse the spectra from astrophysical plasmas. The CHIANTI package is freely available to all researchers.
If you use the package, we only ask you to appropriately acknowledge CHIANTI .



- The Chianti wine-producing area of Tuscany, Italy -

CHIANTI Version 6 Released ! 

CHIANTI 6 includes a complete database of ionization and recombination coefficients for the first 30 elements of the periodic table, as well as IDL programs to read them. Other improvements concern He-like line emission, ionization equilibrium, and new or revised data for ions emitting between 1 and 2000 Angstrom. (see the history file )

Major features (Dere et al. 2009, A&A, 498, 915) in CHIANTI 6 are:

  • inclusion of ionization and recombination rates
  • new ionization equilibrium calculation
  • improved calculation of He-like line intensities (X-rays )
  • new data for Be-like and F-like sequences ( EUV )
  • new data for Fe XVII to Fe XXIII (X-rays )
  • new data for n=3 to n=3 N-like and O-like transitions (UV )

We are grateful to individual scientists and funding agencies for their support.


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Last revised by G. Del Zanna on 2-Sept-2009