Comments (4)
Yes, we're very aware of this issue. The Mosaic3 camera has pattern noise, and these artifacts arise from the algorithm that tries to remove it.
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Thanks! just learn more about this infuriating noise! Then I will remove all these galaxies from my sample. If I may make a comment, I would suggest making this potential problem explicit in the SGA's description!
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@siyue, yes, this issue is frustrating and was also flagged here as it has impacted my intracluster light work, too--
legacysurvey/legacypipe#666
I agree that we should add a note to the "Known Issues" page.
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YES! They are too green!! This is also how I found the problem!!
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Related Issues (20)
- W1,W2 background is over-subtracted around many systems HOT 1
- Weird short bright strip HOT 4
- DR10 failing bricks related to SGA galaxies HOT 1
- links to the viewer not being constructed correctly
- [G,R,Z]_COG_PARAMS_MTOT HOT 2
- SGA-2024 algorithmic plans HOT 1
- SGA-2020 issues that need to be documented HOT 2
- Galaxies that are large enough to be in the SGA, but not in the SGA and SGA-parent catalogs, but could be added by the next SGA release HOT 1
- incorrect central coordinates for large (>5 arcmin) galaxies
- residual masking is too aggressive, leading to a loss of envelope light
- deblending problems in SGA-2020 HOT 11
- incorrect diameters or surface-brightness profiles in SGA-2020 HOT 4
- galaxies missing from the SGA-2020 HOT 4
- color outliers can identify SGA galaxies contaminated by stars
- add media links to web-app
- Remove galaxies in the parent and reject them from SGA2024
- SGA and LEDA links incorrect, should be used by objname instead HOT 5
- SGA-2024 catalog construction HOT 1
- SGA-2024 Names and Morphology Files HOT 1
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