  We present Paper II of the Eccentric Debris Disc Morphologies series to
explore the effects that significant free and forced eccentricities have on
high-resolution millimetre-wavelength observations of debris discs, motivated
by recent ALMA images of HD53143's disc. In this work, we explore the effects
of free eccentricity, and by varying disc fractional widths and observational
resolutions, show for a range of narrow eccentric discs, orbital overlaps
result in dust emission distributions that have either one or two radial peaks
at apocentre and/or pericentre. The narrowest discs contain two radial peaks,
whereas the broadest discs contain just one radial peak. For fixed
eccentricities, as fractional disc widths are increased, we show that these
peaks merge first at apocentre (producing apocentre glow), and then at
pericentre (producing pericentre glow). Our work thus demonstrates that
apocentre/pericentre glows in models with constant free and forced
eccentricities can be both width and resolution dependent at millimetre
wavelengths, challenging the classical assertion that apocentre/pericentre
glows are purely wavelength dependent. We discuss future high-resolution
observations that can distinguish between competing interpretations of
underlying debris disc eccentricity distributions.
