Table 4
Modal bispectrum analysis of foreground-separated SMICA, NILC and SEVEM maps showing fNL from strings, ISW-lensing and diffuse point sources.
| f NL | |||||
| Bispectrum | Independent | ISW subtract | ISW/FG res. | ||
| Methode | signal type | analysis | joint | joint | |
|
|
|||||
| SMICA | Lensing ISW | 0.75 ± 0.37 | – | – | |
| Diff. PS × 1028 | 1.05 ± 0.32 | 1.35 ± 0.34 | 1.40 ± 0.34 | ||
| Cosmic strings | 0.19 ± 0.20 | 0.50 ± 0.21 | 0.37 ± 0.21 | ||
| Gμ/c2 (95%) | 8.4 × 10-7 | 9.7 × 10-7 | 9.3 × 10-7 | ||
| NILC | Lensing ISW | 0.91 ± 0.36 | – | – | |
| Diff. PS × 1028 | 1.16 ± 0.32 | 1.44 ± 0.34 | 1.44 ± 0.34 | ||
| Cosmic strings | 0.13 ± 0.20 | 0.46 ± 0.21 | 0.23 ± 0.21 | ||
| Gμ/c2 (95%) | 8.1 × 10-7 | 9.6 × 10-7 | 8.7 × 10-7 | ||
| SEVEM | Lensing ISW | 0.6 ± 0.36 | – | – | |
| Diff. PS × 1028 | 1.07 ± 0.35 | 1.33 ± 0.38 | – | ||
| Cosmic strings | 0.10 ± 0.20 | 0.38 ± 0.21 | – | ||
| Gμ/c2 (95%) | 7.9 × 10-7 | 9.3 × 10-7 | – | ||
Notes. Three values for fNL are given from independent analysis, joint point source/string analysis after ISW-lensing subtraction, and joint analysis after both ISW-lensing and foreground residual subtraction (FFP6).
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