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  • Canonically, the residuals should be consistent with 0.0.  However, it has become clear that there appears to be a small negative offset in.
  • It is not entirely unreasonable that such an offset could arise.  However, we should expect that (assuming all SN are calibrated consistently across surveys) that the shift should be uniform across surveys.
  • Here, I show the best fit constant line associated with all surveys for which we have >2 SN.  Results are shown below.  
  • In the below plots:
    • The top panel shows the unbinned data and the bottom panel shows the binned data for each survey
      • There were 20 bins of equal redshift space over the redshift range covered by the particular survey in question
    • The fit lines are shown in red
    • The best fit constant (rounded to 5 decimal points) is shown in the red text underneath each line line

View file
nameconstant_fits_all_surveys_1.pdf
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