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What (who) is accretion$566$ - definition
ASTROPHYSICAL PROCESS IN WHICH MATTER GRAVITATIONALLY COLLECTS INTO A MASSIVE OBJECT
Accretion (astronomy); Accretion of planets; Runaway accretion; Planetary accretion
![fall onto the compact star]], forming an accretion disk](https://commons.wikimedia.org/wiki/Special:FilePath/Accretion Disk Binary System.jpg?width=200 "fall onto the compact star]], forming an accretion disk")
![Artist's impression of a [[protoplanetary disk]] showing a young star at its center](https://commons.wikimedia.org/wiki/Special:FilePath/Artist’s Impression of a Baby Star Still Surrounded by a Protoplanetary Disc.jpg?width=200 "Artist's impression of a [[protoplanetary disk]] showing a young star at its center")
![[[Chondrule]]s in a [[chondrite]] meteorite. A millimeter scale is shown.](https://commons.wikimedia.org/wiki/Special:FilePath/Chondrules grassland 1.jpg?width=200 "[[Chondrule]]s in a [[chondrite]] meteorite. A millimeter scale is shown.")
Accretion (meteorology)
ACCUMULATION OF FROZEN WATER AS PRECIPITATION OVER TIME AS IT DESCENDS THROUGH THE ATMOSPHERE
Accretion (atmospheric science); Accretion (atmosphere)
Accretion is defined as the gradual collection of something over time.Accretion (definition) Merriam-Webster.
Accretion (astrophysics)
In astrophysics, accretion is the accumulation of particles into a massive object by gravitationally attracting more matter, typically gaseous matter, in an accretion disk. Most astronomical objects, such as galaxies, stars, and planets, are formed by accretion processes.
Accretion disk
![[[HH-30]], a [[Herbig–Haro object]] surrounded by an accretion disk](https://commons.wikimedia.org/wiki/Special:FilePath/Protoplanetary disk HH-30.jpg?width=200 "[[HH-30]], a [[Herbig–Haro object]] surrounded by an accretion disk")
STRUCTURE FORMED BY DIFFUSE MATERIAL IN ORBITAL MOTION AROUND A MASSIVE CENTRAL BODY
Accretion Disc; Accretion disks; Accretion theory; Accretion Disk; Diskoseismology; Disko-seismology; Disko seismology; Advection-dominated accretion flow; Advection Dominated Accretion Flow; Excretion disk; Excretion disc; Accretion disc
An accretion disk is a structure (often a circumstellar disk) formed by diffuse material in orbital motion around a massive central body. The central body is typically a star.
Wikipedia
Accretion (astrophysics)
In astrophysics, accretion is the accumulation of particles into a massive object by gravitationally attracting more matter, typically gaseous matter, in an accretion disk. Most astronomical objects, such as galaxies, stars, and planets, are formed by accretion processes.
