[daip] UVMOD question

Eric Greisen egreisen at nrao.edu
Fri Jul 10 12:07:40 EDT 2009


Hanno Spreeuw wrote:
> Hello,
> 
> I have a question about UVMOD.
> I inserted a source with circular polarization in a VLA dataset, V=4 Jy, 
> I=10 Jy.
> Next, I imaged Stokes V, but in the image I get the opposite sign, V=-4 Jy.
> Any clue?

Indeed - I play a trick to keep reversing V for adding to RR and LL but 
I reversed V at the start so it went in backwards.  If I do it on LL 
instead all works fine.  I also changed INLIST so that polarization 
models for > 1 source may be done.

Thanks,

Eric Greisen




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