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.