Colloque national CMB-France #8

Session

Sessions 2

24 nov. 2026, 16:00

Institut Astrophysique de Paris

39. The Simons Observatory: Commissioning of the Mid-Frequency Small Aperture Telescopes

24/11/2026 16:00

15. The Simons Observatory Large Aperture Telescope: Cosmology with high resolution data of the Cosmic Microwave Background and preliminary Science Verification results

Karen Perez Sarmiento (Institut d'Astrophysique Spatiale)

24/11/2026 16:30

The Simons Observatory (SO) Large Aperture Telescope (LAT) achieved first light in February 2025 and is expected to reach unprecedented depth at high resolutions over a large area of the millimeter sky for the duration of the survey, making it one of the leading Cosmic Microwave Background (CMB) experiments of the next decade. In this talk, I will provide an overview of the LAT science goals,...

5. The Simons Observatory: A framework for efficient map-based simulations to mitigate instrumental systematics for CMB surveys

Magdy Morshed (INFN Ferrara)

24/11/2026 16:50

The current and future observations of the CMB are expected to reach unprecedented sensitivity to place stringent constraints on both cosmological parameters and fundamental physics. The ground-based Simons Observatory Large Aperture Telescope started observations last year, and will provide the most sensitive small-scale CMB measurements. A tight control over instrumental systematics is...

16. The Simons Observatory: Initial Science Observations with the Small Aperture Telescopes

Ema Tsang

24/11/2026 17:10

In this talk, we tentatively present the first results from the initial science observations, including polarisation maps and power spectra. We describe the analysis pipelines, from data preprocessing to the component separation strategy used to handle Galactic foregrounds, and discuss the main instrumental systematics and their mitigation.

25. Latest news from SPT-3G and SPO

Silvia Galli

24/11/2026 17:30

The 10m South Pole Telescope (SPT) maps the CMB sky with arc-minute resolution. With its high sensitivity observations at 95, 150 and 220GHz its third generation camera (SPT-3G) aims at providing unprecedented constraints on the cosmological parameters, hopefully soon to be based on the analyses of 10% of the CMB sky.
The South Pole Observatory combines the SPT observations with those of the...

6. Extracting cosmology and astrophysics from the cross-correlation between the thermal Sunyaev-Zeldovich signal and galaxy clustering

Léa Dumilly (Institut d'Astrophysique Spatiale)

24/11/2026 17:50

The cosmic microwave background (CMB) traces the matter distribution through the imprints left by its interactions with large-scale structure. Together, the CMB and large-scale structure probes provide complementary insights into the matter distribution at different epochs of the Universe. Their distinct theoretical modeling and observational systematics make cross-correlations...