CMB-S4 is the next generation CMB instrument, led by the US. It will observe the sky from Chile and the South Pole with 500000 detectors. The large scale of the project gives rise to numerous challenges in terms of instrument design, hardware production, data management and data analysis. Several IN2P3 laboratories are involved in this project, both from the data management/analysis and...
The Simons Observatory (SO) is a new cosmic microwave background experiment being built on Cerro Toco in Chile, due to begin observations in the early 2024. SO will measure the temperature and polarization anisotropies of the cosmic microwave background in six frequency bands, from 27 to 280 GHz. The initial configuration of SO will have three small-aperture 0.5-m telescopes (SATs) and one...
In recent months, several discussions have taken place at different levels on the possibility of participating in the SO collaboration by adding a 20k-pixels KID-based SAT observing between 200 and 400 GHz.
Hardware participation will allow us to demonstrate 100 % French technology and to consolidate the scientific impact of the French community in one of the reference CMB projects for the...
While the LiteBIRD satellite mission is about to enter a new phase, both at the Japanese and European levels, I will make the status of the recent progress made and the perspectives for the next months and years.
In this talk, I will review the current status of the SPT-3G project, present recent papers and highlight perspectives.
