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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Ar17+: NIST Data Set version 20260813

Ar XVIII

Max temperature: 6000.0 K

This data collection is critically evaluated and recommended for accuracy.

Ar_p17__NIST.adef.json [2.2 KB]

Metadata definition file for Ar+17 from the NIST dataset.

Ar_p17__NIST.pf [146.5 KB]

Partition function for Ar+17 from the NIST dataset.

  • Max temperature: 6000 K
Ar_p17__NIST.states [6.8 KB]

Energy levels for Ar+17 from the NIST dataset.

  • Number of states: 49
  • Max energy: 35489518.255 cm-1
Ar_p17__NIST.trans [4.9 KB]

Transitions for Ar+17 from the NIST dataset.

  • Number of transitions: 94
  • Max wavenumber: 34709780.0 cm-1