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incorrect diameters or surface-brightness profiles in SGA-2020 #71

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moustakas opened this issue Jun 26, 2023 · 4 comments
Open

incorrect diameters or surface-brightness profiles in SGA-2020 #71

moustakas opened this issue Jun 26, 2023 · 4 comments

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@moustakas
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Related to #48, let's track galaxies with incorrect diameters or surface-brightness profiles here so they can be checked in the next version of the atlas.

From #60 (comment):

  • NGC 55 + IC1537 - SGA ellipse is not big enough and misses fluxes
  • NGC253 - SGA ellipse not big enough
  • NGC4406 + NGC4402 - SGA ellipses look small
  • NGC4472 - SGA ellipse looks small
    IC5152 - SGA ellipse looks ok but wrong axis ratio
@moustakas
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The following objects are in globular clusters and have over-estimated; they probably should be removed from the next SGA version:

@TriShotFlurry
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DDO113 should be redone
Group: DDO113
RA Dec=183.742033 36.218418
D(26)=1.656 arcmin, b/a=0.67, PA=45.0 deg
Type: dIrr , Redshift=0.0009

@TriShotFlurry
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UGC07559
Group: UGC07559
RA Dec=186.772328 37.143684
D(26)=3.548 arcmin, b/a=0.65, PA=145.5 deg
Type: I , Redshift=0.0007
Very underestimated diameter and LEDA is truly accurate

@TriShotFlurry
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The galaxy is significantly overestimated due to big galaxy
NGC2694
Group: NGC2693_GROUP
RA Dec=134.246940 51.331944
D(26)=2.163 arcmin, b/a=0.69, PA=68.2 deg
Type: E , Redshift=0.0169

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