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Accretion can be modeled using various mathematical and physical principles, such as conservation of mass, conservation of angular momentum, and gravitational interactions between particles. The process of accretion involves the gradual accumulation of material onto a larger body, such as a star or planet, due to gravitational attraction. Modeling accretion requires understanding the dynamics and mechanisms involved in the accretion process, which can be represented using mathematical equations and simulations.
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The process by which small debris combines to form planetESimals is called?
Accretion.
Does a accretion spin?
Accretion is the process by which matter is accumulated by gravitational forces. While the accumulation of matter can lead to the formation of objects that spin, such as stars and planets, accretion itself does not inherently involve spinning.
What is disturbed by an outside explosion for it to cause an accretion disk?
When a nebula is disturbed by an outside explosion, it may form an accretion disc.
Why wouldn't an accretion disk orbiting a giant star get as hot as an accretion disk orbiting a compact object?
An accretion disk is heated by friction and compression, both of which are greater for material falling into a compact object as the material is forced into a smaller space. The hottest accretion disks would be found around black holes.
What are the difference between homogeneous and heterogeneous accretion?
Homogeneous accretion involves the accumulation of similar materials, leading to uniform compositions. In contrast, heterogeneous accretion involves the accumulation of diverse materials, resulting in non-uniform compositions. Homogeneous accretion is more likely to occur in environments with a single dominant material source, while heterogeneous accretion is common in environments with multiple material sources.
