 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
|
|
accretion
In general, a process of growth by accumulation and adhesion. In the context of the origin of planetary systems (see planetary systems, formation), accretion is the process by which small particles collide and stick together to form larger objects in a protoplanetary disk. Once a large enough body has formed, its gravitational attraction greatly speeds up the accretion process.
Related entry
• accretion disk
Related categories
• PLANETS AND MOONS
• STELLAR ASTROPHYSICS
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History
Transport Concepts & Designs (partner site)