When galaxies switch off…
When galaxies switch off: Hubble’s COSMOS survey solves “quenched” galaxy mystery
Some galaxies hit a point in their lives when their star formation is snuffed out, and they become quenched. Quenched galaxies in the distant past appear to be much smaller than the quenched galaxies in the Universe today. This has always puzzled astronomers – how can these galaxies grow if they are no longer forming stars? A team of astronomers led by Marcella Carollo at the ETH Zurich has now …Read more: ETH life and NASA/ESA press release
Ein Beispiel einer «abgeschalteten» Galaxie (im Zentrum des Bildes markiert), die im Rahmen des Cosmos-Projekts beobachtet wurde. (Bild: NASA, ESA, Marcella Carollo / ETH Zürich)