Orateur
Description
Component separation is the crucial and challenging analysis step to estimate the CMB signal in the presence of astrophysical contaminants.
The Galactic dust and synchrotron are the primary millimeter emissions to remove in the search for primordial CMB B-modes.
One major unknown is the full complexity of the polarized astrophysical foreground spectral properties, which is yet to be assessed by the current and future generations of CMB experiments.
In this context, the novel non-parametric component separation approach proposed by Leloup et al. (2023) allows us to consider the foreground cleaning problem with minor assumptions on the foreground spectral properties.
This novel method has been extended within a pixel-based approach implemented in the open-source JAX package MICMAC (Minimally Informed CMB MAp Constructor) as described in Morshed et al. (2024).
I will present the method, its implementation, and its first applications, along with preliminary results towards the use of this formalism within the MICS forecasting tool (Leloup et al. -- in prep.).
