[daip] SAD fluxes for unresolved sources

[Eric Greisen]

Vinodiran Arumugam wrote:
> Hi Eric,
> 
> I was wondering if I could get you thoughts on whether SAD integrated 
> fluxes for unresolved sources (sources smaller than the beam) and 
> sources close to the beam size (e.g. convolved major axis of 2.0" for a 
> 1.8" beam) are reliable.
> 
> I'm working at 6-sigma, so I'm assuming that the documented SAD fitting 
> problem close to noise levels can be ignored.
> 
> Thanks,
> Vinod
> 
> 

I found that the peak brightness in Jy/beam was a better estimate of the 
total flux in many cases for the smallest diameter objects.  Noise has a 
tendency to fatten the object giving a falsely larger integrated flux.
DPARM(10) can affect this.

Eric Greisen