"A quasar accretion disc has a typical size of a few light-days, or around 100 billion kilometres across, but they lie billions of light-years away.

"A quasar accretion disk has a typical size of a few light-days, or around 100 billion kilometers [62 billion miles] across, but they lie billions of light-years away," lead scientist Jose Muñoz ...

This may be an observation of the quasar's active accretion disk. Event Horizon Telescope collaboration, ApJ 875, 1 (2019) What we're seeing, for the very first time, is the accretion disk around ...

One of the most powerful objects in the universe is a radio quasar – a spinning black hole spraying out highly energetic particles. Come too close to one, and you’d get sucked in by its gravitational ...

The light from a quasar is produced by an accretion disk. While accretion disks can form around black holes with masses similar to stars, quasars require a supermassive black hole like the ones ...

But when that accretion rate drops, the disk puffs up into a quasi-spherical structure that struggles to emit light. A changing-look quasar goes from bright (left/top) to dim in just a few years ...

“If it wasn’t removed, angular momentum would actually completely stop the accretion and turn off the quasar,” says Young, a post-doctoral fellow at RIT, formerly of the University of Hertfordshire, ...

The simulation then flies through a complex tangle of merging galaxies before zooming into an active supermassive black hole, or quasar, circled by an accretion disk, which is shown feeding gas to ...

This illustration shows the NASA/ESA Hubble Space Telescope in its high orbit 600 kilometres above Earth; Credit: European Space Agency (ESA) Astronomers have found an innovative way of using the ...

The most luminous galaxy in the universe is a roilingly turbulent quasar in the process of ejecting all its star-forming gas. Michelle Starr is CNET's science editor, and she hopes to get you as ...

Astronomers have found that Markarian 231, the nearest galaxy to Earth that hosts a quasar, is powered by two central black holes furiously whirling about each other. Skip to content Introducing ...

“A quasar accretion disk has a typical size of a few light-days, or around 62 billion miles (100 billion kilometers) across, but they lie billions of light-years away,” said Jose Muñoz from ...