Exploring the Large-Scale Cosmic Web at Cosmic Noon (z~2)


The cosmic web is the pattern imprinted by large-scale structure caused by gravitational collapse of the initial fluctuations of the universe, and is also intimately related to how galaxies evolve from the density field. Studies of the cosmic web have largely been limited to z<1 since it requires huge samples of spectroscopic redshifts, but over the past few years I have pioneered the technique of using dense grids of background LBGs to map the ~Mpc scale Lyman-alpha forest in 3D at z>2. The CLAMATO Survey probing the COSMOS field is now complete, and early results included the first detections of galaxy protoclusters and cosmic voids at z>2. Now, we able to trace out the full 3D cosmic web in this well-studied patch of the COSMOS field at Cosmic Noon (z~2.3), and I will preview some of the interesting analyses that are currently underway.

Dr. Khee-Gan Lee @IPMU
Zoom ID: 885 6999 9778 , passcode: astroPKU
Tuesday, June 29, 2021 - 1:30PM to Tuesday, June 29, 2021 - 2:30PM