accretion disks

Gluttonous Black Holes Eat Faster Than Thought. Does That Explain Quasars?

At the heart of large galaxies like our Milky Way, there resides a supermassive black hole (SMBH.) These behemoths draw…

8 months ago

Astronomers Precisely Measure a Black Hole's Accretion Disk

Actively feeding supermassive black holes are known as quasars, and they can outshine all the stars of their host galaxy.…

9 months ago

Advanced Life Should Have Already Peaked Billions of Years Ago

Did humanity miss the party? Are SETI, the Drake Equation, and the Fermi Paradox all just artifacts of our ignorance…

1 year ago

Astronomers Have a New Way to Find Exoplanets in Cataclysmic Binary Systems

Have you heard of LU Camelopardalis, QZ Serpentis, V1007 Herculis and BK Lyncis? No, they're not members of a boy…

2 years ago

A Star Passed too Close and Tore Out a Chunk of a Protoplanetary Disk

When it comes to observing protoplanetary disks, the Atacama Large Millimetre/sub-millimetre Array (ALMA) is probably the champion. ALMA was the…

2 years ago

Black Hole Simulation Solves a Mystery About Their Accretion Disks

A new study by an international team of astrophysicists have validated an age-old theory about how accretion disks behave.

5 years ago

Astronomy Without A Telescope – Blazar Jets

[/caption] Polar jets are often found around objects with spinning accretion disks – anything from newly forming stars to ageing…

14 years ago

Caught in the Act! Merging Galaxies Create a Binary Quasar

[/caption] Excellent teamwork by astronomers working in two different wavebands – x-ray and optical - has led to the discovery…

14 years ago

The Shrinking Doughnut Around a Black Hole

[/caption] Homer Simpson would be sad: recent observations of the binary system of a black hole and its companion star…

14 years ago