Open Access
Table B.1
Summary of the MAGIC Crab Nebula VLZA observations systematics.
| Systematiceffect | Resulting uncertainty |
|---|---|
| F-Factor | 10% ES |
| Atmospheric transmission | <10% ES |
| Mirror reflectivity | 8% ES |
| PMT electron collection efficiency | 5% ES |
| Light collection in a Winston cone | 5% ES |
| PMT quantum efficiency | 4% ES |
| Signal extraction | 3% ES |
| Temperature dependence of gains | 2% ES |
| Charge flat-fielding | 2–8% ES FN |
| Analysis and MC discrepancies | <10–18% FN |
| Background subtraction | 2% FN |
| Broken channels/pixels | 3% FN |
| Mispointing | 4–8% FN |
| NSB | 1–4% FN |
| Trigger | 1% FN |
| Unfolding of energy spectra | 0.1 SL |
Notes.The values not specific to the VLZA data case are taken from Aleksić et al. (2012). The values affecting the telescope energy scale and flux normalisation are labelled “ES” and “FN” correspondingly.
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