ExoAtom

This is the development version of ExoAtom.

Search for species using terms such as Al, Cr+ or W+, or select an element from the periodic table below.

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Kurucz vs NIST coverage

View the full element-by-ionization-stage coverage matrix for both datasets.

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Ar4+: Kurucz Data Set version 20260813

Ar V

Max temperature: 208930.0 K

This data collection is designed for completeness.

Ar_p4__Kurucz.adef.json [2.2 KB]

Metadata definition file for Ar+4 from the Kurucz dataset.

Ar_p4__Kurucz.pf [8.1 KB]

Partition function for Ar+4 from the Kurucz dataset.

  • Max temperature: 208930 K
Ar_p4__Kurucz.states [324.1 KB]

Energy levels for Ar+4 from the Kurucz dataset.

  • Number of states: 3254
  • Max energy: 889105.553 cm-1
Ar_p4__Kurucz.trans [22.6 MB]

Transitions for Ar+4 from the Kurucz dataset.

  • Number of transitions: 446472
  • Max wavenumber: 888209.0 cm-1

Ar4+: NIST Data Set version 20260813

Ar V

Max temperature: 6000.0 K

This data collection is critically evaluated and recommended for accuracy.

Ar_p4__NIST.adef.json [2.2 KB]

Metadata definition file for Ar+4 from the NIST dataset.

Ar_p4__NIST.pf [146.5 KB]

Partition function for Ar+4 from the NIST dataset.

  • Max temperature: 6000 K
Ar_p4__NIST.states [6.7 KB]

Energy levels for Ar+4 from the NIST dataset.

  • Number of states: 48
  • Max energy: 432378.0 cm-1
Ar_p4__NIST.trans [954 bytes]

Transitions for Ar+4 from the NIST dataset.

  • Number of transitions: 18
  • Max wavenumber: 121630.8 cm-1