DECam's specialized filter allowed the team to count the number of companion galaxies around the quasar by detecting a very specific type of light they emit, known as Lyman-alpha radiation.

But for the first time, researchers at MIT have managed to unpick this mixture of signals and detect the faint stellar light from stars in galaxies around some of the oldest quasars in the universe.

Hubble dimmed quasar 3C 273’s glare to reveal ghostly blobs and filaments near its core—evidence of galaxy cannibalism and ...

Quasar J0742+2704 (center) became the subject of astronomers' interest after it was discovered to have a newborn jet blasting from the disk around its ... with other galaxies are what funnel ...

The little red dots could represent galaxies that are in an evolutionary phase that predates the luminous quasar phase, and therefore help researchers understand the formation and role of ...

and chaos in the space around these black holes. Over time, it became clear that quasars weren’t just isolated beacons—they were deeply connected to their host galaxies and the universe’s ...

In recent years, astronomers have realized that they are gigantic black holes at the centers of young galaxies into which matter is heated to high temperatures and glows brightly as it rushes in.

The research of our group concentrates on X-ray, optical, infrared and radio studies of active galaxies and quasars, to investigate the links between galaxy evolution and nuclear activity. Starbursts ...

One of the most powerful objects in the universe is a radio quasar—a spinning black hole ... and how they affect the environment of space around them. Black holes are massive, astrophysical ...

In fact, it may even be possible that all galaxies form around these supermassive black holes." The quasar was first detected using a 2.3 metre telescope at the ANU Siding Spring Observatory near ...

Active black holes have a pancake-shaped structure around them called an accretion disk, which contains hot, electrically charged gas. The plasma that makes up the accretion disk comes from farther ...