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OWLS update: galaxy selection

OWLS update: galaxy selection. Feb 2008. CFHT, ugriz magnitudes, D1 field. CFHT, ugriz magnitudes, D3 field. CFHT, ugriz magnitudes, D4 field. G-R vs. U-G, CFHT (D1 sample). (red = zp > 0.3, green = zp <0.3). G-R vs. U-G, CFHT (D1 sample). (red = zp > 0.4, green = zp <0.4).

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OWLS update: galaxy selection

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  1. OWLS update: galaxy selection Feb 2008

  2. CFHT, ugriz magnitudes, D1 field

  3. CFHT, ugriz magnitudes, D3 field

  4. CFHT, ugriz magnitudes, D4 field

  5. G-R vs. U-G, CFHT (D1 sample) (red = zp > 0.3, green = zp <0.3)

  6. G-R vs. U-G, CFHT (D1 sample) (red = zp > 0.4, green = zp <0.4)

  7. G-R vs. U-G, CFHT (D1 sample) (red = zp > 0.6, green = zp<0.6)

  8. G-R vs. U-G, CFHT (D1 sample) Showing the effect Of “angular” color Cuts in isolating Bkgd sample (Red = zp > 0.3, Green = zp < 0.3 )

  9. CFHT cuts: zp distributions after color cuts (D1 field) Black = all Blue = color-selected foreground Orange = color-selected bkgd

  10. CFHT cuts: zp distributions after color cuts (D3 field) Black = all Blue = color-selected foreground Orange = color-selected bkgd

  11. CFHT cuts: zp distributions after color cuts (D4 field) Black = all Blue = color-selected foreground Orange = color-selected bkgd

  12. Mag vs. color plots, CFHT

  13. U vs. U-G, CFHT D1 Difficult to see in this And all the following Magnitude vs. color Plots how a magnitude Cut will help clean the Sample more than just A color cut as already Shown.

  14. G vs. U-G, CFHT D1

  15. G vs. G-R, CFHT D1

  16. R vs. G-R, CFHT D1

  17. 3D Scatter plot of u-g vs. g-r vs. g

  18. SDSS - LBC

  19. G-R vs. U-G, LBC-SDSS matched objects (red = zp > 0.3, green = zp <0.3)

  20. G-R vs. U-G, all LBC objects

  21. Umag Dif (SDSS-LBC) Left = without Umag Error cut Right = with Umag Error cut (SDSS Umagerror < 0.5 ) Umag error (x-axis labels are: 0.5, 1, 1.5, 2, 2.5)

  22. G-Diff Left = without Gmag Error cut Right = with Gmag Error cut (SDSS Gmagerror < 0.2 ) Gmag error (x-axis labels are: 0.2, 0.4, 0.6, 0.8)

  23. R-Diff Rmag error (x-axis labels are: 0.2, 0.4, 0.6, 0.8) Left = without Rmag Error cut Right = with Rmag Error cut (SDSS Rmagerror < 0.2 )

  24. For reference: Comparing Iso Mag vs. Aperture Mag (g-band), LBC

  25. Comparing Auto Mag vs. Aperture Mag (g-band), LBC

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