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systematic flux deviation after swap
08-05-2011, 12:05 (This post was last modified: 08-09-2011 15:06 by cycy.)
Post: #1
systematic flux deviation after swap
Hi all,

For multi-band photometry, I have to resample images to the same pixel scale. When I compare the SExtractor output mag_auto of original and swarped images. I found the attached result. There are about 0.1 mag systematic deviation. And the deviation's dispersion is non-gaussian like.
Is this normal, or how should I eliminate it?

Thank you!


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