Planck 2018 results IX. Constraints on primordial non-Gaussianity
| dc.contributor.author | Ballardini, M. | |
| dc.contributor.author | Akrami, Y. | |
| dc.contributor.author | Arroja, F. | |
| dc.date.accessioned | 2021-02-15T11:45:57Z | |
| dc.date.available | 2021-02-15T11:45:57Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | We analyse the Planck full-mission cosmic microwave background (CMB) temperature and E-mode polarization maps to obtain constraints on primordial non-Gaussianity (NG). We compare estimates obtained from separable template-fitting, binned, and optimal modal bispectrum estimators, finding consistent values for the local, equilateral, and orthogonal bispectrum amplitudes. Our combined temperature and polarization analysis produces the following final results: fNLlocal = −0.9 ± 5.1; fNLequil = −26 ± 47; and fNLortho = −38 ± 24 (68% CL, statistical). | en_US |
| dc.identifier.citation | Ballardini, M. et al. (2020). Planck 2018 results IX. Constraints on primordial non-Gaussianity. Astronomy & Astrophysics, 641, A9 | en_US |
| dc.identifier.issn | 1432-0746 | |
| dc.identifier.uri | https://doi.org/10.1051/0004-6361/201935891 | |
| dc.identifier.uri | http://hdl.handle.net/10566/5929 | |
| dc.language.iso | en | en_US |
| dc.publisher | EDP Sciences | en_US |
| dc.subject | Cosmic background radiation | en_US |
| dc.subject | Cosmology: observations | en_US |
| dc.subject | Cosmology: theory | en_US |
| dc.subject | Early Universe | en_US |
| dc.subject | Inflation | en_US |
| dc.title | Planck 2018 results IX. Constraints on primordial non-Gaussianity | en_US |
| dc.type | Article | en_US |