Fig. 4: Line flux evolution. Right axis.
From: Spectroscopy of a mesospheric ghost reveals iron emissions
Temporal evolution of the normalised average of the line fluxes of the identified species in Table 2 (set A, black dotted line), in Table 3 (set B, black dashed line) and in Tables 2 and 3 (combined set A and set B, black solid line). Left axis: Temporal evolution of the Fe I (528.04 nm), O I (557.73 nm), N2 (560.80 nm) and Fe I (583.46 nm) line flux ratios. Note that t = 0 ms is coincident with the sprite. Source data are provided as a Source Data file.
