An accretion disk is a structure (often a circumstellar disk) formed by diffuse material in orbital motion around a massive central body. The central...

protoplanetary disk may also be considered an accretion disk for the star itself, because gases or other material may be falling from the inner edge of the disk onto...

into an accretion disk. Most astronomical objects, such as galaxies, stars, and planets, are formed by accretion processes. The accretion model that...

protoplanetary disk evolving into a planetary system over the next 10–100 million years. The protoplanetary disk is an accretion disk that feeds the central...

A circumstellar disc (or circumstellar disk) is a torus, pancake or ring-shaped accretion disk of matter composed of gas, dust, planetesimals, asteroids...

light. Any matter that falls toward a black hole can form an external accretion disk heated by friction, forming quasars, some of the brightest objects in...

wind from the star provides material for an accretion disk around the X-ray source. Matter in the inner disk is heated to millions of degrees, generating...

Black Hole Accretion Disks" (PDF). Archived (PDF) from the original on 2016-09-10. Frankel, N. (2017). Nucleosynthesis in Accretion Disks Around Black...

binary star systems and accrete matter from either stellar winds or accretion disks. The accreted matter transfers angular momentum to (or from) the neutron...

PDS 70 b has acquired its own accretion disk. The accretion disk was observationally confirmed in 2019, and the accretion rate was measured to be at least...