Table 5
Results from the different fNL estimators for the set of CMB simulations described in Sect. 5.1 in the ideal case without noise or mask.
| f NL | |||||||
|
|
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| Shape | KSW | Binned | Modal 1 | Modal 2 | B − KSW | M1 − KSW | M2 − KSW |
|
|
|||||||
| T Local .............. | 7.6 ± 5.4 | 7.4 ± 5.6 | 7.4 ± 5.1 | 7.2 ± 5.7 | −0.3 ± 0.6 | −0.2 ± 0.4 | −0.5 ± 2.2 |
| T Equilateral .............. | 7 ± 53 | 5 ± 58 | 6 ± 53 | 8 ± 56 | −2 ± 12 | −1.0 ± 8.4 | 0 ± 17 |
| T Orthogonal .............. | −22 ± 27 | −22 ± 28 | −22 ± 27 | −17 ± 30 | 0.5 ± 9.4 | −0.2 ± 4.2 | 5 ± 11 |
| E Local .............. | −0.9 ± 4.1 | −1.3 ± 3.4 | −0.9 ± 3.7 | ... | −0.3 ± 2.9 | 0.1 ± 0.5 | ... |
| E Equilateral .............. | −9 ± 42 | −10 ± 42 | −10 ± 40 | ... | −1 ± 11 | −0.7 ± 9.2 | ... |
| E Orthogonal .............. | 4 ± 13 | 5 ± 13 | 4 ± 12 | ... | 0.1 ± 3.8 | −0.3 ± 2.7 | ... |
| T+E Local .............. | 2.2 ± 3.1 | 1.5 ± 2.5 | 2.1 ± 2.8 | 2.0 ± 3.3 | −0.6 ± 1.0 | 0.0 ± 0.8 | −0.2 ± 1.9 |
| T+E Equilateral .............. | 0 ± 20 | 2 ± 22 | 3 ± 21 | 0 ± 23 | 1.4 ± 5.8 | 2.3 ± 7.3 | 0 ± 12 |
| T+E Orthogonal .............. | −4 ± 10 | −4 ± 9 | −6 ± 9 | −5 ± 12 | 0.3 ± 2.2 | −1.1 ± 3.1 | −1.0 ± 7.1 |
Notes. Both the results for the estimators individually and for the differences with KSW are given, for T-only, E-only, and the full combined T+E analysis. The shapes are assumed independent.
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