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Edge effect ?
01-21-2015, 02:11
Post: #1
Edge effect ?
Dear all,

I've been using Sextractor/Scamp/Swarp for some time now, to stack CFHT/Megacam exposures and build the large mosaic.
I run each code on every chip of the instrument separately.
After resampling the fits, I realize it suffers from some edge effects (see attached image).
Could you please let me know where this is coming from? Is this due to the background subtraction?

Many thanks,

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