Colloquium on Dec. 18, 2024

Two Recent Discoveries Made at the JWST - extremely young galaxies at z=8.31-8.49 and a disk galaxy at z=5.289

Speaker: Haojing Yan (University of Missouri-Columbia)

Venue: SWIFAR Building 2111

Time: 16:00 PM, Wednesday, Dec. 18, 2024

Abstract:

JWST has been making breakthroughs in almost every forefront since its launch. This talk will share two recent discoveries: (1) Four infant galaxies at z=8.31-8.49 that likely form a filament structure; while they are all extremely young (< 20 Myrs), they have vastly different dust extinction. (2) A disk-like galaxy confirmed at z=5.289, which sets the redshift record for galaxies of regular disk morhpology. Both discoveries have far-reaching implications, which will be discussed in details.

Report PPT:  SWIFAR_Haojing Yan.pdf