Astronomers believe these quasars formed in some of the densest environments in the Universe. However, past measurements trying to confirm this have shown mixed results. A new study using the Dark Energy Camera (DECam) offers an explanation for these different findings and provides a way to link observations with theory.
Observations using the Dark Energy Camera (DECam) confirm astronomers’ expectation that early-Universe quasars formed in regions of space densely populated with companion galaxies.
