Table 1.
ZTF cosmology science working group DR2 sample statistics.
| Cuts | n targets | Removed | % Removed |
|---|---|---|---|
| Master list | 3795 | – | – |
| + ZTF light curve | 3778 | 17 | 0.4 |
| + a spectrum | 3668 | 110 | 2.9 |
| + confirmed “Ia” | 3628 | 40 | 1.1 |
| Basic cuts | |||
| Good light curve sampling | 2960 | 668 | 18.4 |
| x1 ∈ [ − 3, +3] | 2899 | 61 | 2.1 |
| c ∈ [ − 0.2, 0.8] | 2861 | 38 | 1.4 |
| σt0 ≤ 1 | 2836 | 25 | 0.9 |
| σx1 ≤ 1 | 2822 | 14 | 0.5 |
| σc ≤ 0.1 | 2809 | 13 | 0.4 |
| “fitprob”≥10−7 | 2667 | 142 | 5.1 |
| Subsample examples | |||
| Volume limited (z ≤ 0.06) | 994 | 1673 | 62.7 |
| Non-peculiar SNe Ia | 2629 | 38 | 1.4 |
Notes. “Subsample examples” are “logical or” cuts starting from the 2667 SNe Ia.
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