Table 4
Various scenarios considerd foor the Ibc contamination.
| Scenario | Δbc | fbc | σbc | dδμ/dz | Nbc/NIa |
|
|
|||||
| R02 | 1.4 | 0.16 | 1.4 | 0.0014 | 5.5% |
| 1.0 | 0.0034 | 4.9% | |||
| R02 bright | –0.8 | 2.4 | 0.5 | –0.0047 | 2.6% |
| 0.33 | –0.0047 | 1.6% | |||
| L10 | 2.4 | 0.8 | 1.2 | 0.0086 | 8.4% |
| 1.0 | 0.0058 | 4.3% | |||
Notes. This table summarises the hypotheses about the average magnitude shift of Ibc’s with respect to SNe Ia, the r.m.s of their magnitude distribution, the amount of Ibc at z = 0 in units of the Ia rate, the resulting slope bias of the Hubble diagram dδμ/dz, and the average fraction of contaminants. The impact on cosmology is small under all these hypotheses.
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