Open Access
Table A.1.
Budget of systematic errors on H0 from the 2 sibling SNe in NGC 4414
| Source of uncertainty | Error | Magnitude |
|---|---|---|
| % | (mag) | |
| LMC zero-point | 1.2 | 0.026 |
| WFPC2 zero-point | 1 | 0.022 |
| Reddening | 1 | 0.022 |
| Metallicity | 4 | 0.087 |
| Bias in Cepheid PL | 1 | 0.022 |
| Crowding | 1 | 0.022 |
| B-band fit SNooPy | 0.55 | 0.012 |
| V-band fit SNooPy | 0.87 | 0.019 |
| Total | 4.74 | 0.103 |
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