I know...
Emission spectrum is taken to be the complement of the absorption spectrum.
If all energy transitions have its complement then, they should all cancel. Dark lines should not be visible and the background emission spectrum against which they appears must also be accounted for. Ambient light or indirect illumination alone does not generate the background emission spectrum.
Emission spectrum in this blog refers to the backdrop upon which the dark absorption lines appears.
Redefining everything to be right...When wrong is right, what's left? Right??
Eliminate all indirect illumination, does fine gaps appears in the background emission spectrum?
Wrong does not make left right, it just leaves behind more questions... More questions are what's left!