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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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.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 [7.9 KB]
  Transitions for Fr from the NIST dataset.
  - Number of transitions: 149
  - Max wavenumber: 32391.99 cm-1
- Fr__NIST.adef.json [4.3 KB]
  Metadata definition file for Fr from the NIST dataset.