The “timing argument” overestimates the total mass of the local group by oversimplifying it to a two body problem, a new study explore how the complex merger history of objects in the group affect its mass estimates.
Something is missing in the middle. In JWST JADES galaxies, young clumps drop out in the inner regions, while clump structure shifts from the outskirts to the center.
Are some of the most massive galaxies in the early Universe truly quenched, or just hiding their star formation behind dust? Today’s bite explores how ALMA helps solve this cosmic conundrum.
…to learn more about the origins of dusty galaxies at early cosmic times.
When studying distant galaxies, SED fitting is one tool to rule them all. But how can we learn the detailed history of entire galaxies from just a few snapshots?
Are cosmic clumps “homegrown”, or fueled by fresh inflow? Today’s authors find that star-forming clumps are usually more metal-poor than the disks around them.