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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Fe21+: NIST Data Set version 20260813

Fe XXII

Max temperature: 6000.0 K

This data collection is critically evaluated and recommended for accuracy.

Fe_p21__NIST.adef.json [2.2 KB]

Metadata definition file for Fe+21 from the NIST dataset.

Fe_p21__NIST.pf [146.5 KB]

Partition function for Fe+21 from the NIST dataset.

  • Max temperature: 6000 K
Fe_p21__NIST.states [8.4 KB]

Energy levels for Fe+21 from the NIST dataset.

  • Number of states: 60
  • Max energy: 53327000.0 cm-1
Fe_p21__NIST.trans [4.7 KB]

Transitions for Fe+21 from the NIST dataset.

  • Number of transitions: 90
  • Max wavenumber: 11160700.0 cm-1