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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Fr: NIST Data Set version 20240901

Fr I | mass = 223.0 u

Max temperature: 6000 K

This data collection is critically evaluated and recommended for accuracy.

Fr__NIST.adef.json [3.4 KB]

Metadata definition file for Fr from the NIST dataset.

Fr__NIST.pf [152.3 KB]

Partition function for Fr from the NIST dataset.

  • Max temperature: 6000 K
Fr__NIST.states [14.3 KB]

Energy levels for Fr from the NIST dataset.

  • Number of states: 122
  • Max energy: 32693.75 cm-1
Fr__NIST.trans [5.5 KB]

Transitions for Fr from the NIST dataset.

  • Number of transitions: 149
  • Max wavenumber: 32391.99 cm-1