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The Simons Observatory: Astro2020 Decadal Project Whitepaper
The Simons Observatory Collaboration, Maximilian H. Abitbol, Shunsuke Adachi +280
The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) experiment sited on Cerro Toco in the Atacama Desert in Chile that promises to provide breakthrough…
Planck 2018 results. IX. Constraints on primordial non-Gaussianity
Planck Collaboration, Y. Akrami, F. Arroja +157
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 e…
General modal estimation for cross-bispectra
Maresuke Shiraishi, Michele Liguori, James R. Fergusson +1
We describe a fast, optimal estimator for measuring angular bispectra between two correlated weakly non-Gaussian fields ( and ) from observational datasets, based on a separa…
Advancing the matter bispectrum estimation of large-scale structure: a comparison of dark matter codes
Johnathan Hung, James R. Fergusson, E. P. S. Shellard
Cosmological information from forthcoming galaxy surveys, such as LSST and Euclid, will soon exceed that available from the CMB. Higher order correlation functions, like the bispec…
CMB-S4 forecast on the primordial non-Gaussianity parameter of feature models
Wuhyun Sohn, James Fergusson
We present forecasts on the primordial non-Gaussianity parameter of feature models for the future Cosmic Microwave Background Stage-4 (CMB-S4) experiments. The Fisher…