Sample LWS Fringes
The plots below shows fringing in a bright extended HII region. This source
has a strong continuum and the zero point is off the plot on the y-axis
of the plot. The y-axis runs here from 100 to 400 arbitrary flux units.
The ripples are a sinusoid in 1/lambda and so run from shorter to longer
period across the plot. The [CII] line is visible here.