r7 - 17 Mar 2016 - 07:45:33 - TWikiGuestYou are here: TWiki >  Main Web > PhatResults > GoodsNorthResults

Results for the GoodsNorth catalogue

As of March 30, 2009, nine people replied to the GoodsNorth catalogue. In the following the results are presented in two ways:

  • plots showing the spectroscopic redshift vs. the estimated redshift
  • Mean and RMS values of the quantity Δz=(zspec-zphot)/(1+zspec) together with outlier rates. We calculated the mean and the RMS of the redshift differences twice, once with an iterative 5-sigma outliers rejection and once rejecting all objects with Δz>0.15.

No cuts were applied to the various quality indicators put out by the different codes yet. Results are available for runs with the IRAC filters and without.


Assef, Roberto (LRT, template-based code, optimised for low-resolution templates, see Assef, et al. 2008):

with IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 1.5625% outliers, Δz=0.0406772 +/- 0.148245
    • Δz>0.15 outlier rejection: 14.8185% outliers, Δz=0.023843 +/- 0.0613788

without IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 2.57056% outliers, Δz=0.0807074 +/- 0.161043
    • Δz>0.15 outlier rejection: 18.8004% outliers, Δz=0.0383354 +/- 0.054773

Banerji, Manda (ANNz, neural-network code, see Collister & Lahav 2004):

with IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 0.544588% outliers, Δz=-0.0482978 +/- 0.179
    • Δz>0.15 outlier rejection: 31.0415% outliers, Δz=-0.00951374 +/- 0.0738864

without IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 0.476515% outliers, Δz=-0.0532808 +/- 0.211989
    • Δz>0.15 outlier rejection: 38.4615% outliers, Δz=-0.00556231 +/- 0.0775546

Brammer, Gabriel (EAZY, template-based code, see Brammer et al. 2008):

with IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 5.64516% outliers, Δz=0.0234559 +/- 0.0709821
    • Δz>0.15 outlier rejection: 11.6431% outliers, Δz=0.0202268 +/- 0.0418901

without IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 6.35081% outliers, Δz=0.0261558 +/- 0.0813256
    • Δz>0.15 outlier rejection: 13.5081% outliers, Δz=0.0223703 +/- 0.0418469

with IRAC and optimised templates (v1.1 with stronger emission lines)

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 5.39315% outliers, Δz=0.0191582 +/- 0.0729259
    • Δz>0.15 outlier rejection: 11.5423% outliers, Δz=0.0138125 +/- 0.0435903

without IRAC and optimised templates (v1.1 with stronger emission lines)

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 6.35081% outliers, Δz=0.018491 +/- 0.0783656
    • Δz>0.15 outlier rejection: 12.9536% outliers, Δz=0.0145033 +/- 0.0433486

with IRAC, v1.1 templates, and ZP re-calibration

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 5.54435% outliers, Δz=0.0113394 +/- 0.0721023
    • Δz>0.15 outlier rejection: 11.4415% outliers, Δz=0.00777358 +/- 0.0413093

without IRAC, v1.1 templates, and ZP re-calibration

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 6.70363% outliers, Δz=0.0126085 +/- 0.0717329
    • Δz>0.15 outlier rejection: 12.8024% outliers, Δz=0.00919505 +/- 0.0415742

Coe, Dan (BPZ, template-based code, see Benitez 2000):

with IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 4.78831% outliers, Δz=-0.0896461 +/- 0.132704
    • Δz>0.15 outlier rejection: 30.8972% outliers, Δz=-0.0455279 +/- 0.0597997

without IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 1.20968% outliers, Δz=0.034056 +/- 0.14018
    • Δz>0.15 outlier rejection: 11.4415% outliers, Δz=0.0114833 +/- 0.0484179

Kotulla, Ralf (GALEV, template-based code, see Kotulla et al. 2009)

with IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 2.46976% outliers, Δz=-0.0117004 +/- 0.221134
    • Δz>0.15 outlier rejection: 23.1351% outliers, Δz=-0.0087619 +/- 0.0611602

without IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 2.67137% outliers, Δz=0.0525261 +/- 0.181747
    • Δz>0.15 outlier rejection: 19.254% outliers, Δz=0.0163244 +/- 0.0589685

Li, Tornado (empirical code, polynomial fitting)

with IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 0.957661% outliers, Δz=-0.010874 +/- 0.151217
    • Δz>0.15 outlier rejection: 18.0444% outliers, Δz=-0.00866909 +/- 0.0524777

without IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 1.86492% outliers, Δz=0.00118059 +/- 0.112278
    • Δz>0.15 outlier rejection: 13.7097% outliers, Δz=-0.00661693 +/- 0.0514931

Miralles, Joan-Marc (Hyperz, template-based code, see Bolzonella et al. 2000):

with IRAC, CWW+SB template set

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 2.11694% outliers, Δz=-0.00741288 +/- 0.158381
    • Δz>0.15 outlier rejection: 18.498% outliers, Δz=-0.000784163 +/- 0.0579095

without IRAC, CWW+SB template set

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 2.21774% outliers, Δz=0.0377789 +/- 0.137954
    • Δz>0.15 outlier rejection: 14.6673% outliers, Δz=0.0181778 +/- 0.0550522

with IRAC, BC template set

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 6.55242% outliers, Δz=0.0128936 +/- 0.108801
    • Δz>0.15 outlier rejection: 17.0867% outliers, Δz=0.013188 +/- 0.0529754

without IRAC, BC template set

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 3.1754% outliers, Δz=0.0479351 +/- 0.158546
    • Δz>0.15 outlier rejection: 17.2883% outliers, Δz=0.0223649 +/- 0.0522287

Schmidt, Sam (krenel regression code & BPZ (see Benitez 2000)):

with IRAC, kernel regression

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 2.92339% outliers, Δz=-0.0157047 +/- 0.195503
    • Δz>0.15 outlier rejection: 19.6573% outliers, Δz=-0.00763554 +/- 0.0526371

without IRAC, kernel regression

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 0.957661% outliers, Δz=0.0212649 +/- 0.186027
    • Δz>0.15 outlier rejection: 16.6835% outliers, Δz=-0.00609671 +/- 0.0534582

with IRAC, BPZ

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 3.78024% outliers, Δz=-0.0297625 +/- 0.16172
    • Δz>0.15 outlier rejection: 21.8246% outliers, Δz=-0.0240051 +/- 0.0572546

without IRAC, BPZ

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 3.0746% outliers, Δz=0.0256138 +/- 0.146068
    • Δz>0.15 outlier rejection: 14.2641% outliers, Δz=0.00422547 +/- 0.0483947

Wolf, Chris (empirical χ2):

with IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 0.680735% outliers, Δz=-0.00288127 +/- 0.159163
    • Δz>0.15 outlier rejection: 18.4479% outliers, Δz=-0.0010163 +/- 0.0671926

without IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 1.42954% outliers, Δz=0.000393868 +/- 0.143632
    • Δz>0.15 outlier rejection: 16.7461% outliers, Δz=0.00175597 +/- 0.0658123

Cavuoti, Stefano et al. (neural network trained by a Quasi Newton rule, see Brescia et al. 2012 for model details); added 1 March 2012:

with IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 2.46976% outliers, Δz=-0.00238137 +/- 0.131203
    • Δz>0.15 outlier rejection: 16.3306% outliers, Δz=0.000604251 +/- 0.0562278

without IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 2.11694% outliers, Δz=-0.00700167 +/- 0.145979
    • Δz>0.15 outlier rejection: 19.3548% outliers, Δz=0.00277721 +/- 0.0626341

Hoyle, Ben (AdaBoost? machine learning code); added 27 August 2015:

with IRAC

  • zspec vs. zphot:
    zz_AS.png

  • statistics:
    • iterative 5-σ outlier rejection: 1.97413% outliers, Δz=-0.00878371 +/- 0.0867495
    • Δz>0.15 outlier rejection: 9.39415% outliers, Δz=-0.00545016 +/- 0.0497327

Vicente, Juan (DNF, Directional Neighbourhood Fit):

with IRAC

  • zspec vs. zphot:
    zz_VJ.png

  • statistics:
    • iterative 5-σ outlier rejection: 0.953029% outliers, Δz=-0.0281399 +/- 0.174319
    • Δz>0.15 outlier rejection: 25.2553% outliers, Δz=-0.00642104 +/- 0.0652693

without IRAC

  • zspec vs. zphot:
    zz_VJ.png

  • statistics:
    • iterative 5-σ outlier rejection: 1.70184% outliers, Δz=-0.0120062 +/- 0.158573
    • Δz>0.15 outlier rejection: 21.8516% outliers, Δz=-0.0044639 +/- 0.0634697

-- HendrikHildebrandt - 17 March 2016

Topic attachments
I Attachment Action Size Date Who Comment
pngpng zz_AR.png manage 44.1 K 30 Mar 2009 - 08:23 TWikiGuest zspec vs. zphot
pngpng zz_BG.png manage 37.2 K 30 Mar 2009 - 08:31 TWikiGuest zspec vs. zphot
pngpng zz_BG2.png manage 43.1 K 30 Mar 2009 - 08:32 TWikiGuest zspec vs. zphot
pngpng zz_BG3.png manage 42.5 K 30 Mar 2009 - 08:33 TWikiGuest zspec vs. zphot
pngpng zz_BM.png manage 34.6 K 30 Mar 2009 - 08:24 TWikiGuest zspec vs. zphot
pngpng zz_CD.png manage 40.3 K 30 Mar 2009 - 08:34 TWikiGuest zspec vs. zphot
pngpng zz_CS.png manage 23.3 K 01 Mar 2012 - 20:37 TWikiGuest zspec vs. zphot
pngpng zz_HB.png manage 18.6 K 27 Aug 2015 - 14:58 TWikiGuest zspec vs. zphot
pngpng zz_KR.png manage 40.3 K 30 Mar 2009 - 08:34 TWikiGuest zspec vs. zphot
pngpng zz_LT.png manage 38.3 K 30 Mar 2009 - 08:37 TWikiGuest zspec vs. zphot
pngpng zz_MJ.png manage 38.8 K 30 Mar 2009 - 08:35 TWikiGuest zspec vs. zphot
pngpng zz_MJ2.png manage 39.7 K 30 Mar 2009 - 08:35 TWikiGuest zspec vs. zphot
pngpng zz_SS.png manage 49.1 K 30 Mar 2009 - 08:36 TWikiGuest zspec vs. zphot
pngpng zz_SS2.png manage 47.1 K 30 Mar 2009 - 08:37 TWikiGuest zspec vs. zphot
pngpng zz_VJ.png manage 23.5 K 17 Mar 2016 - 07:42 TWikiGuest zspec vs. zphot
pngpng zz_WC.png manage 38.8 K 02 Apr 2009 - 12:34 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_AR.png manage 43.6 K 30 Mar 2009 - 08:24 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_BG.png manage 37.5 K 30 Mar 2009 - 08:32 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_BG2.png manage 44.3 K 30 Mar 2009 - 08:33 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_BG3.png manage 43.6 K 30 Mar 2009 - 08:33 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_BM.png manage 34.7 K 30 Mar 2009 - 08:24 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_CD.png manage 36.8 K 30 Mar 2009 - 08:34 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_CS.png manage 23.9 K 01 Mar 2012 - 20:37 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_KR.png manage 38.7 K 30 Mar 2009 - 08:34 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_LT.png manage 36.7 K 30 Mar 2009 - 08:37 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_MJ.png manage 39.8 K 30 Mar 2009 - 08:35 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_MJ2.png manage 37.1 K 30 Mar 2009 - 08:36 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_SS.png manage 45.3 K 30 Mar 2009 - 08:36 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_SS2.png manage 41.7 K 30 Mar 2009 - 08:37 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_VJ.png manage 22.8 K 17 Mar 2016 - 07:42 TWikiGuest zspec vs. zphot
pngpng zz_wo_sp_WC.png manage 40.0 K 02 Apr 2009 - 12:34 TWikiGuest zspec vs. zphot
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