Where have all the AGN gone?
Astronomers think active black holes may play a role in shutting down star formation, but today’s study suggests that the story is more complicated than we thought.
Distant Galaxies: Dead or in Disguise?
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.
SED Fitting: How Astronomers Understand Galaxies Across Time
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?
Feed the Fire, Fade the Metals
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.
A Potential New Piece of the “Little Red Dot” Puzzle
Today’s paper presents an intriguing new object, which may be a early-Universe supermassive black hole shedding its gas cocoon!
Back for Seconds: Evidence of Two Bursts of Star Formation in an Ultra-Faint Dwarf Galaxy
Reticulum II? More like Reticulum TWO distinct periods of star formation! Or at least that’s what new spectroscopic observations incdicate.