[daip] Fwd: Re: Multiscale clean

[Lawrence Rudnick]

thanks. makes sense.  lr


Eric Greisen wrote:
> Lawrence Rudnick wrote:
>>   Eric -  and some additional questions in my mind...   if you do, as 
>> Frazer says, restore all components to all maps at all scales, I don't 
>> understand how this works.   When/how is the convolution done of the 
>> different scale clean components before they are restored? [You can't 
>> for example, convolve a large-scale clean component  for the 
>> small-scale map, but you could just add it in with its appropriate 
>> scale?].   
> 
> When components from facet I are added to facet J the component widths 
> used are those of the fatter (larger product of BMAJ*BMIN) clean beam 
> and the amplitude is adjusted down by the factor 
> BMAJ(J)*BMIN(J)/BMAJ(f)*BMIN(f)
> where f = I or J - the fatter one.
> 
> There is not some addition convolution...
> 
> Eric