LiteBIRD science goals and forecasts: primordial magnetic fields

D Paoletti, JA Rubino-Martin, M Shiraishi… - … of Cosmology and …, 2024 - iopscience.iop.org
We present detailed forecasts for the constraints on the characteristics of primordial
magnetic fields (PMFs) generated prior to recombination that will be obtained with the …

The Simons Observatory: Combining cross-spectral foreground cleaning with multitracer -mode delensing for improved constraints on inflation

E Hertig, K Wolz, T Namikawa, AB Lizancos, S Azzoni… - Physical Review D, 2024 - APS
The Simons Observatory (SO), due to start full science operations in early 2025, aims to set
tight constraints on inflationary physics by inferring the tensor-to-scalar ratio r from …

Nonparametric maximum likelihood component separation for CMB polarization data

C Leloup, J Errard, R Stompor - Physical Review D, 2023 - APS
Mitigation of the impact of foreground contributions to measurements of cosmic microwave
background (CMB) polarization is a crucial step in modern CMB data analysis and is of …

Constraining cosmological parameters with needlet internal linear combination maps. II. Likelihood-free inference on needlet internal linear combination power …

KM Surrao, JC Hill - Physical Review D, 2024 - APS
Standard cosmic microwave background (CMB) analyses constrain cosmological and
astrophysical parameters by fitting parametric models to multifrequency power spectra …

Constraining cosmological parameters with needlet internal linear combination maps. I. Analytic power spectrum formalism

KM Surrao, JC Hill - Physical Review D, 2024 - APS
The internal linear combination (ILC) method is a popular approach for constructing
component-separated maps in cosmic microwave background analyses. It optimally …

Characterizing cosmic birefringence in the presence of Galactic foregrounds and instrumental systematic effects

B Jost, J Errard, R Stompor - Physical Review D, 2023 - APS
We study a possibility of constraining isotropic cosmic birefringence with help of cosmic
microwave background polarization data in the presence of polarization angle …

Sensitivity-Improved Polarization Maps at 40 GHz with CLASS and WMAP data

R Shi, JW Appel, CL Bennett, R Bustos… - The Astrophysical …, 2024 - iopscience.iop.org
Improved polarization measurements at frequencies below 70 GHz with degree-level
angular resolution are crucial for advancing our understanding of the Galactic synchrotron …

The European Low Frequency Survey on the Simons Array

A Mennella, K Arnold, S Azzoni, C Baccigalupi… - arXiv preprint arXiv …, 2024 - arxiv.org
In this paper we present the European Low Frequency Survey (ELFS), a project that will
enable foregrounds-free measurements of the primordial $ B $-mode polarization and a …

Pixel domain implementation of the minimally informed CMB map foreground cleaning method

M Morshed, A Rizzieri, C Leloup, J Errard, R Stompor - Physical Review D, 2024 - APS
High fidelity separation of astrophysical foreground contributions from the cosmic microwave
background (CMB) signal has been recognized as one of the main challenges of modern …

Main beam treatment in parametric, pixel-based component separation

A Rizzieri, J Errard, R Stompor - arXiv preprint arXiv:2409.12944, 2024 - arxiv.org
We implement a simple, main beam correction in the maximum-likelihood, parametric
component separation approach, which allows on accounting for different beamwidths of …