The Millimetre Sky from the Atacama Cosmology Telescope

I will show new maps of the Cosmic Microwave Background made by the Atacama Cosmology Telescope, and describe how they are advancing our knowledge of cosmology and complementing optical large-scale structure surveys. I will show how the new data let us weigh in on the LCDM cosmological model, the Hubble constant and the spatial geometry of the universe, as well as providing a sample of thousands of galaxy clusters, and revealing the distribution of gas around groups of galaxies. These new arcminute-resolution millimeter maps of the sky, and future refinements with upcoming observations, promise to teach us not only cosmology but also about Galactic science, active galactic nuclei and dusty high-redshift galaxies. 

Speaker: Jo Dunkley (Princeton University)

All 2020 Fall Colloquium virtual talks are held on Wednesdays at 3:00 PM.

Please direct questions or comments to contact above. The 2020-2021 committee members are: Karoline Gilbert (STScI co-chair), Ethan Vishniac (JHU co-chair), Graeme Addison (JHU), Martha Boyer (STScI), Joshua Peek (STScI), Kevin Schlaufman (JHU), and Raymond Simons (STScI).