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Table 1

Equivalent widths for the more prominent spectral features of WISE J0720 in angstroms.

Feature, λ Value Feature, λ Value Feature, λ Value

Optical features:
Hα 6563 −3.9 ± 0.1 Rb I 7800 1.6 ± 0.1 Sc I 8520 0.5 ± 0.1
Li I 6707 0.07 Rb I 7948 1.1 ± 0.1
Near-infrared features:
Na I 11380 7.2 ± 0.5 K I 12432 6.5 ± 0.3 Na I 22062 6.5 ± 0.7
Na I 11400 6.8 ± 0.3 K I 12527 6.7 ± 0.9 Ca I 22640 0.9 ± 0.2
K I+Fe I 11690 6.4 ± 0.2 K I 15168 3.6 ± 0.2
K I 11780 9.6 ± 0.4 Mg I 15025 1.7 ± 0.9

Notes. The line wavelengths λ are listed in Å.

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