The temperature map of the Cosmic Microwave Background as seen by different satellite missions. Planck has the highest resolution.
The Cosmic Microwave Background was first detected in 1964 and has since been one of the main source of information for cosmologists. A rich variety of science has been extracted from data from satellite missions such as Cobe, WMAP, and ultimately Planck, and from ground-based experiments such as the South Pole Telescope (SPT), the Atacama Cosmology Telescope (ACT), and in the near future Simons Observatory.
Ultimately, the CMB Stage 4 experiment will significantly surpass the sensitivity of all these experiments and probe the existence of primordial gravitational waves, and models of dark energy and dark matter through a combination of CMB temperature, polarization, and CMB secondaries (e.g., CMB lensing, kinetic and thermal Sunyaev Zel'dovich).
Learn more about CMB science and CMB-S4...
Our lab currently uses publicly available data from Planck, SPT, and ACT to combine temperature, polarization, and CMB lensing information with low-redshift probes based on galaxy clustering and galaxy weak lensing.
We also explore synergies of future galaxy redshift surveys with CMB experiments, in particular we are interested in the interplay of Roman/Rubin early data with Simons Observatory and then Roman/Rubin late datasets with CMB-S4.