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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Cu20+: NIST Data Set version 20260813

Cu XXI

Max temperature: 6000.0 K

This data collection is critically evaluated and recommended for accuracy.

Cu_p20__NIST.adef.json [2.2 KB]

Metadata definition file for Cu+20 from the NIST dataset.

Cu_p20__NIST.pf [146.5 KB]

Partition function for Cu+20 from the NIST dataset.

  • Max temperature: 6000 K
Cu_p20__NIST.states [7.1 KB]

Energy levels for Cu+20 from the NIST dataset.

  • Number of states: 51
  • Max energy: 10112000.0 cm-1
Cu_p20__NIST.trans [53 bytes]

Transitions for Cu+20 from the NIST dataset.

  • Number of transitions: 1
  • Max wavenumber: 168800.0 cm-1