MEMIT -- iterates Doppler images.
You can run this as soon as you have a suitable starting image but
I advise scaling with OPTSCL to get a good start.
FIGARO variables:
IMAGE -- The image to be iterated. Typically created by makimg
OUTPUT -- Iterated image. Can be overwrite of earlier one.
DATA -- Data file to iterate on.
CAIM -- Reduced chi-squared to aim for. Ultimately this controls the
noise/resolution tradeoff in the image. If you aim for too low
a chi**2 your image will be corrupted by noise. Often I start
too low, see where the image gets to and then relax it a bit.
NITS -- Number of iterations.
RMAX -- Maximum step size. This limits the amount MEM tries to change
the image and will only apply early on when you will see the
step taken limited by this number.
NDEF -- Default option. The entropy can be measured relative to
different defaults. Normally I start with NDEF = 1 and then
switch to NDEF = 2 when I am nearer image. I don't use the
others at all and they are not guaranteed. Using NDEF = 2
means that the entropy becomes insensitive to large scale
variations which is a desireable feature as we don't expect
uniformity in the image which NDEF = 1 implies. However we
do hope for smoothness on small scales.
1 = Uniform
2 = Gaussian blurr
3 = Power law
4 = Gaussian blurr + radial profile
if NDEF = 2 or 4
BLURR -- Amount of blurring for Gaussian default option
esle if NDEF = 3
EXPON -- Exponent of power law
XCEN -- X coordinate of centre for power law
YCEN -- Y coordinate of centre for power law
RADMIN -- Inner radius of power law. (Constant inside)
This command belongs to the classes: