11:00 am–12:00 pm ERC 401
Title: Mapping the Universe with 21cm Intensity Mapping
Abstract: 21cm intensity mapping is an emerging technique for probing cosmic large-scale structure by measuring emission or absorption from spin-flip transitions in distant clouds of neutral hydrogen. In principle, this technique can be used to map the universe from z~0 all the way to z~150. In practice, significant challenges remain, but in the past few years, there has been steady progress toward overcoming these challenges. In this talk, I will focus on intensity mapping in the post-reionization universe. I will review the motivation for this technique, and then discuss recent cosmology results from the CHIME telescope (which was custom-bult for intensity mapping), along with progress toward the next generation of measurements and new tools for interpreting these measurements. Collectively, these developments will set the stage for intensity mapping to provide exciting information about cosmology and astrophysics in the years to come.
Zoom:https://uchicago.zoom.us/j/96477534182?pwd=ypU41Y4kOxRWO3cSRImezBYtv75UGH.1
